31400044242231 has 16 divisors (see below), whose sum is σ = 47862050931968. Its totient is φ = 17937495748800.

The previous prime is 31400044242197. The next prime is 31400044242269. The reversal of 31400044242231 is 13224244000413.

It is not a de Polignac number, because 31400044242231 - 2⁹ = 31400044241719 is a prime.

It is a super-2 number, since 2×31400044242231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31400044142231) 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, 224373190 + ... + 224513091.

It is an arithmetic number, because the mean of its divisors is an integer number (2991378183248).

Almost surely, 2^{31400044242231} is an apocalyptic number.

31400044242231 is a deficient number, since it is larger than the sum of its proper divisors (16462006689737).

31400044242231 is a wasteful number, since it uses less digits than its factorization.

31400044242231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448889622.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 31400044242231 its reverse (13224244000413), we get a palindrome (44624288242644).

The spelling of 31400044242231 in words is "thirty-one trillion, four hundred billion, forty-four million, two hundred forty-two thousand, two hundred thirty-one".