31211222340123 has 36 divisors (see below), whose sum is σ = 52449714657288. Its totient is φ = 17832818465280.

The previous prime is 31211222340073. The next prime is 31211222340127. The reversal of 31211222340123 is 32104322211213.

31211222340123 is a `hidden beast` number, since 3 + 1 + 2 + 1 + 12 + 223 + 401 + 23 = 666.

It is not a de Polignac number, because 31211222340123 - 2¹⁶ = 31211222274587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31211222340127) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 657798 + ... + 7928123.

It is an arithmetic number, because the mean of its divisors is an integer number (1456936518258).

Almost surely, 2^{31211222340123} is an apocalyptic number.

31211222340123 is a deficient number, since it is larger than the sum of its proper divisors (21238492317165).

31211222340123 is a wasteful number, since it uses less digits than its factorization.

31211222340123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8594184 (or 8594174 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 31211222340123 its reverse (32104322211213), we get a palindrome (63315544551336).

The spelling of 31211222340123 in words is "thirty-one trillion, two hundred eleven billion, two hundred twenty-two million, three hundred forty thousand, one hundred twenty-three".