123122331213 has 24 divisors (see below), whose sum is σ = 192339131040. Its totient is φ = 69849450720.

The previous prime is 123122331191. The next prime is 123122331257. The reversal of 123122331213 is 312133221321.

It is not a de Polignac number, because 123122331213 - 2⁵ = 123122331181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123122335213) 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, 2992398 + ... + 3033263.

It is an arithmetic number, because the mean of its divisors is an integer number (8014130460).

Almost surely, 2^123122331213 is an apocalyptic number.

It is an amenable number.

123122331213 is a deficient number, since it is larger than the sum of its proper divisors (69216799827).

123122331213 is a wasteful number, since it uses less digits than its factorization.

123122331213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6025817 (or 6025810 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

Adding to 123122331213 its reverse (312133221321), we get a palindrome (435255552534).

The spelling of 123122331213 in words is "one hundred twenty-three billion, one hundred twenty-two million, three hundred thirty-one thousand, two hundred thirteen".