31242253254223 has 16 divisors (see below), whose sum is σ = 34173760265856. Its totient is φ = 28326046407840.

The previous prime is 31242253254209. The next prime is 31242253254227. The reversal of 31242253254223 is 32245235224213.

It is a cyclic number.

It is not a de Polignac number, because 31242253254223 - 2²⁵ = 31242219699791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31242253254227) 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, 5441665 + ... + 9596677.

It is an arithmetic number, because the mean of its divisors is an integer number (2135860016616).

Almost surely, 2^{31242253254223} is an apocalyptic number.

31242253254223 is a deficient number, since it is larger than the sum of its proper divisors (2931507011633).

31242253254223 is a wasteful number, since it uses less digits than its factorization.

31242253254223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156854.

The product of its digits is 691200, while the sum is 40.

Adding to 31242253254223 its reverse (32245235224213), we get a palindrome (63487488478436).

The spelling of 31242253254223 in words is "thirty-one trillion, two hundred forty-two billion, two hundred fifty-three million, two hundred fifty-four thousand, two hundred twenty-three".