13213402124 has 24 divisors (see below), whose sum is σ = 25760879760. Its totient is φ = 5888199744.

The previous prime is 13213402093. The next prime is 13213402127. The reversal of 13213402124 is 42120431231.

It is a super-2 number, since 2×13213402124² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13213402124.

It is not an unprimeable number, because it can be changed into a prime (13213402127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4379594 + ... + 4382609.

It is an arithmetic number, because the mean of its divisors is an integer number (1073369990).

Almost surely, 2^13213402124 is an apocalyptic number.

It is an amenable number.

13213402124 is a deficient number, since it is larger than the sum of its proper divisors (12547477636).

13213402124 is a wasteful number, since it uses less digits than its factorization.

13213402124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8762249 (or 8762247 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 13213402124 its reverse (42120431231), we get a palindrome (55333833355).

The spelling of 13213402124 in words is "thirteen billion, two hundred thirteen million, four hundred two thousand, one hundred twenty-four".