1312023202311 has 16 divisors (see below), whose sum is σ = 1826077893120. Its totient is φ = 836352586080.

The previous prime is 1312023202283. The next prime is 1312023202319. The reversal of 1312023202311 is 1132023202131.

It is not a de Polignac number, because 1312023202311 - 2⁷ = 1312023202183 is a prime.

It is a super-2 number, since 2×1312023202311² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312023202319) 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, 3213876 + ... + 3599033.

It is an arithmetic number, because the mean of its divisors is an integer number (114129868320).

Almost surely, 2^{1312023202311} is an apocalyptic number.

1312023202311 is a deficient number, since it is larger than the sum of its proper divisors (514054690809).

1312023202311 is a wasteful number, since it uses less digits than its factorization.

1312023202311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6815726.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1312023202311 its reverse (1132023202131), we get a palindrome (2444046404442).

The spelling of 1312023202311 in words is "one trillion, three hundred twelve billion, twenty-three million, two hundred two thousand, three hundred eleven".