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1231302022230 = 23575863342963
BaseRepresentation
bin10001111010101111010…
…100011101010001010110
311100201012112222121002010
4101322233110131101112
5130133201304202410
62341352523325050
7154646545334040
oct21725724352126
94321175877063
101231302022230
11435212989755
1217a774680786
138c15a645357
144384985ca90
1522067ca3c20
hex11eaf51d456

1231302022230 has 32 divisors (see below), whose sum is σ = 3377285547264. Its totient is φ = 281440462176.

The previous prime is 1231302022217. The next prime is 1231302022253. The reversal of 1231302022230 is 322202031321.

It is a happy number.

It is a super-2 number, since 2×12313020222302 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1231302022197 and 1231302022206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2931671272 + ... + 2931671691.

It is an arithmetic number, because the mean of its divisors is an integer number (105540173352).

Almost surely, 21231302022230 is an apocalyptic number.

1231302022230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231302022230 is an abundant number, since it is smaller than the sum of its proper divisors (2145983525034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231302022230 is a wasteful number, since it uses less digits than its factorization.

1231302022230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5863342980.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1231302022230 its reverse (322202031321), we get a palindrome (1553504053551).

Subtracting from 1231302022230 its reverse (322202031321), we obtain a palindrome (909099990909).

The spelling of 1231302022230 in words is "one trillion, two hundred thirty-one billion, three hundred two million, twenty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 5863342963 11726685926 17590028889 29316714815 35180057778 41043400741 58633429630 82086801482 87950144445 123130202223 175900288890 205217003705 246260404446 410434007410 615651011115 1231302022230