13213402040 has 32 divisors (see below), whose sum is σ = 29857772880. Its totient is φ = 5262673152.

The previous prime is 13213402021. The next prime is 13213402051. The reversal of 13213402040 is 4020431231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 699554 + ... + 718193.

Almost surely, 2^13213402040 is an apocalyptic number.

13213402040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13213402040 is an abundant number, since it is smaller than the sum of its proper divisors (16644370840).

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

13213402040 is a wasteful number, since it uses less digits than its factorization.

13213402040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417991 (or 1417987 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13213402040 its reverse (4020431231), we get a palindrome (17233833271).

The spelling of 13213402040 in words is "thirteen billion, two hundred thirteen million, four hundred two thousand, forty".