31112422001 has 16 divisors (see below), whose sum is σ = 32191899600. Its totient is φ = 30049643520.

The previous prime is 31112421997. The next prime is 31112422037. The reversal of 31112422001 is 10022421113.

It can be written as a sum of positive squares in 8 ways, for example, as 1383765601 + 29728656400 = 37199^2 + 172420^2 .

It is a cyclic number.

It is not a de Polignac number, because 31112422001 - 2² = 31112421997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31112422091) 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, 1774325 + ... + 1791773.

It is an arithmetic number, because the mean of its divisors is an integer number (2011993725).

Almost surely, 2^31112422001 is an apocalyptic number.

It is an amenable number.

31112422001 is a deficient number, since it is larger than the sum of its proper divisors (1079477599).

31112422001 is a wasteful number, since it uses less digits than its factorization.

31112422001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17924.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 31112422001 its reverse (10022421113), we get a palindrome (41134843114).

The spelling of 31112422001 in words is "thirty-one billion, one hundred twelve million, four hundred twenty-two thousand, one".