13021431412 has 24 divisors (see below), whose sum is σ = 25054848000. Its totient is φ = 5872224960.

The previous prime is 13021431361. The next prime is 13021431461. The reversal of 13021431412 is 21413412031.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1159537 + ... + 1170712.

It is an arithmetic number, because the mean of its divisors is an integer number (1043952000).

Almost surely, 2^13021431412 is an apocalyptic number.

It is an amenable number.

13021431412 is a deficient number, since it is larger than the sum of its proper divisors (12033416588).

13021431412 is a wasteful number, since it uses less digits than its factorization.

13021431412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330391 (or 2330389 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 13021431412 its reverse (21413412031), we get a palindrome (34434843443).

The spelling of 13021431412 in words is "thirteen billion, twenty-one million, four hundred thirty-one thousand, four hundred twelve".