1231233031022 has 32 divisors (see below), whose sum is σ = 2012778892800. Its totient is φ = 563224879008.

The previous prime is 1231233030983. The next prime is 1231233031051. The reversal of 1231233031022 is 2201303321321.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6030122 + ... + 6230957.

It is an arithmetic number, because the mean of its divisors is an integer number (62899340400).

Almost surely, 2^{1231233031022} is an apocalyptic number.

1231233031022 is a deficient number, since it is larger than the sum of its proper divisors (781545861778).

1231233031022 is a wasteful number, since it uses less digits than its factorization.

1231233031022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12261200.

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

Adding to 1231233031022 its reverse (2201303321321), we get a palindrome (3432536352343).

The spelling of 1231233031022 in words is "one trillion, two hundred thirty-one billion, two hundred thirty-three million, thirty-one thousand, twenty-two".