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1310011223020 = 225611073779691
BaseRepresentation
bin10011000100000010110…
…000001110101111101100
311122020100221020021102221
4103010002300032233230
5132430400333114040
62441451050525124
7163434204445453
oct23040260165754
94566327207387
101310011223020
11465633202225
12191a801367a4
13966c2214046
1447594dcdb9a
1524122c9d74a
hex13102c0ebec

1310011223020 has 24 divisors (see below), whose sum is σ = 2796122317968. Its totient is φ = 515414251200.

The previous prime is 1310011222937. The next prime is 1310011223029. The reversal of 1310011223020 is 203221100131.

It is a super-2 number, since 2×13100112230202 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1310011222985 and 1310011223003.

It is not an unprimeable number, because it can be changed into a prime (1310011223029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536888626 + ... + 536891065.

It is an arithmetic number, because the mean of its divisors is an integer number (116505096582).

Almost surely, 21310011223020 is an apocalyptic number.

1310011223020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310011223020 is an abundant number, since it is smaller than the sum of its proper divisors (1486111094948).

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

1310011223020 is a wasteful number, since it uses less digits than its factorization.

1310011223020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073779761 (or 1073779759 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1310011223020 its reverse (203221100131), we get a palindrome (1513232323151).

The spelling of 1310011223020 in words is "one trillion, three hundred ten billion, eleven million, two hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 1073779691 2147559382 4295118764 5368898455 10737796910 21475593820 65500561151 131001122302 262002244604 327502805755 655005611510 1310011223020