13123231321102 has 16 divisors (see below), whose sum is σ = 22921439074272. Its totient is φ = 5518124220960.

The previous prime is 13123231320973. The next prime is 13123231321111. The reversal of 13123231321102 is 20112313232131.

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, 8843147049 + ... + 8843148532.

It is an arithmetic number, because the mean of its divisors is an integer number (1432589942142).

Almost surely, 2^{13123231321102} is an apocalyptic number.

13123231321102 is a deficient number, since it is larger than the sum of its proper divisors (9798207753170).

13123231321102 is a wasteful number, since it uses less digits than its factorization.

13123231321102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17686295643.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 13123231321102 its reverse (20112313232131), we get a palindrome (33235544553233).

The spelling of 13123231321102 in words is "thirteen trillion, one hundred twenty-three billion, two hundred thirty-one million, three hundred twenty-one thousand, one hundred two".