13151023020 has 72 divisors (see below), whose sum is σ = 39910446576. Its totient is φ = 3505268352.

The previous prime is 13151022947. The next prime is 13151023031. The reversal of 13151023020 is 2032015131.

13151023020 is a `hidden beast` number, since 131 + 510 + 2 + 3 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13151022984 and 13151023002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 387454 + ... + 420026.

It is an arithmetic number, because the mean of its divisors is an integer number (554311758).

Almost surely, 2^13151023020 is an apocalyptic number.

13151023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13151023020 is an abundant number, since it is smaller than the sum of its proper divisors (26759423556).

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

13151023020 is a wasteful number, since it uses less digits than its factorization.

13151023020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34831 (or 34826 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 13151023020 its reverse (2032015131), we get a palindrome (15183038151).

The spelling of 13151023020 in words is "thirteen billion, one hundred fifty-one million, twenty-three thousand, twenty".