1313123131222 has 64 divisors (see below), whose sum is σ = 2338747914240. Its totient is φ = 541268130816.

The previous prime is 1313123131213. The next prime is 1313123131237. The reversal of 1313123131222 is 2221313213131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186070318 + ... + 186077374.

It is an arithmetic number, because the mean of its divisors is an integer number (36542936160).

Almost surely, 2^{1313123131222} is an apocalyptic number.

1313123131222 is a deficient number, since it is larger than the sum of its proper divisors (1025624783018).

1313123131222 is a wasteful number, since it uses less digits than its factorization.

1313123131222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11965.

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

Adding to 1313123131222 its reverse (2221313213131), we get a palindrome (3534436344353).

The spelling of 1313123131222 in words is "one trillion, three hundred thirteen billion, one hundred twenty-three million, one hundred thirty-one thousand, two hundred twenty-two".