1312332021023 has 4 divisors (see below), whose sum is σ = 1327077324720. Its totient is φ = 1297586717328.

The previous prime is 1312332020983. The next prime is 1312332021043. The reversal of 1312332021023 is 3201202332131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312332021023 - 2⁸ = 1312332020767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312332021023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312332021043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7372651715 + ... + 7372651892.

It is an arithmetic number, because the mean of its divisors is an integer number (331769331180).

Almost surely, 2^{1312332021023} is an apocalyptic number.

1312332021023 is a deficient number, since it is larger than the sum of its proper divisors (14745303697).

1312332021023 is an equidigital number, since it uses as much as digits as its factorization.

1312332021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14745303696.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1312332021023 its reverse (3201202332131), we get a palindrome (4513534353154).

The spelling of 1312332021023 in words is "one trillion, three hundred twelve billion, three hundred thirty-two million, twenty-one thousand, twenty-three".