1312332231121 has 16 divisors (see below), whose sum is σ = 1341223906176. Its totient is φ = 1283733360000.

The previous prime is 1312332231109. The next prime is 1312332231163. The reversal of 1312332231121 is 1211322332131.

It is a cyclic number.

It is not a de Polignac number, because 1312332231121 - 2¹⁷ = 1312332100049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312332231101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70315531 + ... + 70334191.

It is an arithmetic number, because the mean of its divisors is an integer number (83826494136).

Almost surely, 2^{1312332231121} is an apocalyptic number.

It is an amenable number.

1312332231121 is a deficient number, since it is larger than the sum of its proper divisors (28891675055).

1312332231121 is a wasteful number, since it uses less digits than its factorization.

1312332231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26424.

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

Adding to 1312332231121 its reverse (1211322332131), we get a palindrome (2523654563252).

The spelling of 1312332231121 in words is "one trillion, three hundred twelve billion, three hundred thirty-two million, two hundred thirty-one thousand, one hundred twenty-one".