13211215040 has 56 divisors (see below), whose sum is σ = 31486614192. Its totient is φ = 5279882240.

The previous prime is 13211215027. The next prime is 13211215051. The reversal of 13211215040 is 4051211231.

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

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, 362450 + ... + 397230.

Almost surely, 2^13211215040 is an apocalyptic number.

13211215040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13211215040 is an abundant number, since it is smaller than the sum of its proper divisors (18275399152).

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

13211215040 is a wasteful number, since it uses less digits than its factorization.

13211215040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35985 (or 35975 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 13211215040 its reverse (4051211231), we get a palindrome (17262426271).

The spelling of 13211215040 in words is "thirteen billion, two hundred eleven million, two hundred fifteen thousand, forty".