1312020303233 has 16 divisors (see below), whose sum is σ = 1338577482816. Its totient is φ = 1285531191360.

The previous prime is 1312020303229. The next prime is 1312020303277. The reversal of 1312020303233 is 3323030202131.

It is a cyclic number.

It is not a de Polignac number, because 1312020303233 - 2² = 1312020303229 is a prime.

It is a super-2 number, since 2×1312020303233² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312020303199 and 1312020303208.

It is not an unprimeable number, because it can be changed into a prime (1312020323233) 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, 138233618 + ... + 138243108.

It is an arithmetic number, because the mean of its divisors is an integer number (83661092676).

Almost surely, 2^{1312020303233} is an apocalyptic number.

It is an amenable number.

1312020303233 is a deficient number, since it is larger than the sum of its proper divisors (26557179583).

1312020303233 is a wasteful number, since it uses less digits than its factorization.

1312020303233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12784.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 1312020303233 its reverse (3323030202131), we get a palindrome (4635050505364).

The spelling of 1312020303233 in words is "one trillion, three hundred twelve billion, twenty million, three hundred three thousand, two hundred thirty-three".