13031158540 has 12 divisors (see below), whose sum is σ = 27365432976. Its totient is φ = 5212463408.

The previous prime is 13031158519. The next prime is 13031158541. The reversal of 13031158540 is 4585113031.

It is a super-2 number, since 2×13031158540² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13031158541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325778944 + ... + 325778983.

It is an arithmetic number, because the mean of its divisors is an integer number (2280452748).

Almost surely, 2^13031158540 is an apocalyptic number.

13031158540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13031158540 is an abundant number, since it is smaller than the sum of its proper divisors (14334274436).

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

13031158540 is a wasteful number, since it uses less digits than its factorization.

13031158540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651557936 (or 651557934 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 13031158540 in words is "thirteen billion, thirty-one million, one hundred fifty-eight thousand, five hundred forty".