13213302123 has 24 divisors (see below), whose sum is σ = 20655501312. Its totient is φ = 7490995344.

The previous prime is 13213302119. The next prime is 13213302127. The reversal of 13213302123 is 32120331231.

It is an interprime number because it is at equal distance from previous prime (13213302119) and next prime (13213302127).

It is not a de Polignac number, because 13213302123 - 2² = 13213302119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 13213302123.

It is not an unprimeable number, because it can be changed into a prime (13213302127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335215 + ... + 372552.

It is an arithmetic number, because the mean of its divisors is an integer number (860645888).

Almost surely, 2^13213302123 is an apocalyptic number.

13213302123 is a deficient number, since it is larger than the sum of its proper divisors (7442199189).

13213302123 is a wasteful number, since it uses less digits than its factorization.

13213302123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707911 (or 707904 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13213302123 its reverse (32120331231), we get a palindrome (45333633354).

The spelling of 13213302123 in words is "thirteen billion, two hundred thirteen million, three hundred two thousand, one hundred twenty-three".