13023542220 has 72 divisors (see below), whose sum is σ = 39486794256. Its totient is φ = 3205792512.

The previous prime is 13023542131. The next prime is 13023542249. The reversal of 13023542220 is 2224532031.

It is a super-2 number, since 2×13023542220² (a number of 21 digits) contains 22 as substring.

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, 632047 + ... + 652326.

It is an arithmetic number, because the mean of its divisors is an integer number (548427698).

Almost surely, 2^13023542220 is an apocalyptic number.

13023542220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13023542220 is an abundant number, since it is smaller than the sum of its proper divisors (26463252036).

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

13023542220 is a wasteful number, since it uses less digits than its factorization.

13023542220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284411 (or 1284396 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The spelling of 13023542220 in words is "thirteen billion, twenty-three million, five hundred forty-two thousand, two hundred twenty".