31212133141023 has 32 divisors (see below), whose sum is σ = 48267531916800. Its totient is φ = 19896421583808.

The previous prime is 31212133140997. The next prime is 31212133141027. The reversal of 31212133141023 is 32014133121213.

31212133141023 is a `hidden beast` number, since 3 + 1 + 2 + 1 + 213 + 31 + 410 + 2 + 3 = 666.

It is not a de Polignac number, because 31212133141023 - 2⁸ = 31212133140767 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31212133141027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7021933 + ... + 10570326.

It is an arithmetic number, because the mean of its divisors is an integer number (1508360372400).

Almost surely, 2^{31212133141023} is an apocalyptic number.

31212133141023 is a deficient number, since it is larger than the sum of its proper divisors (17055398775777).

31212133141023 is a wasteful number, since it uses less digits than its factorization.

31212133141023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17595148 (or 17595142 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 31212133141023 its reverse (32014133121213), we get a palindrome (63226266262236).

The spelling of 31212133141023 in words is "thirty-one trillion, two hundred twelve billion, one hundred thirty-three million, one hundred forty-one thousand, twenty-three".