13031210440 has 32 divisors (see below), whose sum is σ = 29423854080. Its totient is φ = 5194060992.

The previous prime is 13031210419. The next prime is 13031210471. The reversal of 13031210440 is 4401213031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564264 + ... + 586903.

It is an arithmetic number, because the mean of its divisors is an integer number (919495440).

Almost surely, 2^13031210440 is an apocalyptic number.

13031210440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13031210440 is an abundant number, since it is smaller than the sum of its proper divisors (16392643640).

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

13031210440 is a wasteful number, since it uses less digits than its factorization.

13031210440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151461 (or 1151457 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13031210440 its reverse (4401213031), we get a palindrome (17432423471).

The spelling of 13031210440 in words is "thirteen billion, thirty-one million, two hundred ten thousand, four hundred forty".