1312133022 has 24 divisors (see below), whose sum is σ = 2843660664. Its totient is φ = 437269104.

The previous prime is 1312132999. The next prime is 1312133023. The reversal of 1312133022 is 2203312131.

1312133022 is a `hidden beast` number, since 1 + 312 + 1 + 330 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1312132986 and 1312133004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312133023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102933 + ... + 114975.

It is an arithmetic number, because the mean of its divisors is an integer number (118485861).

Almost surely, 2^1312133022 is an apocalyptic number.

1312133022 is an abundant number, since it is smaller than the sum of its proper divisors (1531527642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312133022 is a wasteful number, since it uses less digits than its factorization.

1312133022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18104 (or 18101 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1312133022 is about 36223.3767338165. The cubic root of 1312133022 is about 1094.7777318298. Note that the first 4 decimals are identical.

Adding to 1312133022 its reverse (2203312131), we get a palindrome (3515445153).

The spelling of 1312133022 in words is "one billion, three hundred twelve million, one hundred thirty-three thousand, twenty-two".