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123101300221400 = 235217791993496599
BaseRepresentation
bin11011111111010111000001…
…010001010110010111011000
3121010212100222021021202002102
4123333113001101112113120
5112113342430324041100
61113451542343422532
734633526656131554
oct3377270121262730
9533770867252072
10123101300221400
1136250a71804626
1211981a34454a48
13538c530c50c87
1422581c5964864
15e37232319cd5
hex6ff5c14565d8

123101300221400 has 384 divisors, whose sum is σ = 309355200000000. Its totient is φ = 45390118625280.

The previous prime is 123101300221397. The next prime is 123101300221411. The reversal of 123101300221400 is 4122003101321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18654535301 + ... + 18654541899.

It is an arithmetic number, because the mean of its divisors is an integer number (805612500000).

Almost surely, 2123101300221400 is an apocalyptic number.

123101300221400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123101300221400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154677600000000).

123101300221400 is an abundant number, since it is smaller than the sum of its proper divisors (186253899778600).

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

123101300221400 is a wasteful number, since it uses less digits than its factorization.

123101300221400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7259 (or 7250 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123101300221400 its reverse (4122003101321), we get a palindrome (127223303322721).

The spelling of 123101300221400 in words is "one hundred twenty-three trillion, one hundred one billion, three hundred million, two hundred twenty-one thousand, four hundred".