31240411552431 has 24 divisors (see below), whose sum is σ = 46345831484160. Its totient is φ = 20263527383616.

The previous prime is 31240411552403. The next prime is 31240411552517. The reversal of 31240411552431 is 13425511404213.

31240411552431 is a `hidden beast` number, since 3 + 1 + 2 + 404 + 1 + 1 + 5 + 5 + 243 + 1 = 666.

It is not a de Polignac number, because 31240411552431 - 2⁶ = 31240411552367 is a prime.

It is a super-2 number, since 2×31240411552431² (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 (31240411552331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11914761 + ... + 14298333.

It is an arithmetic number, because the mean of its divisors is an integer number (1931076311840).

Almost surely, 2^{31240411552431} is an apocalyptic number.

31240411552431 is a deficient number, since it is larger than the sum of its proper divisors (15105419931729).

31240411552431 is a wasteful number, since it uses less digits than its factorization.

31240411552431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422975 (or 2422972 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 31240411552431 its reverse (13425511404213), we get a palindrome (44665922956644).

The spelling of 31240411552431 in words is "thirty-one trillion, two hundred forty billion, four hundred eleven million, five hundred fifty-two thousand, four hundred thirty-one".