31114401550 has 12 divisors (see below), whose sum is σ = 57872786976. Its totient is φ = 12445760600.

The previous prime is 31114401547. The next prime is 31114401581. The reversal of 31114401550 is 5510441113.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311143966 + ... + 311144065.

It is an arithmetic number, because the mean of its divisors is an integer number (4822732248).

Almost surely, 2^31114401550 is an apocalyptic number.

31114401550 is a deficient number, since it is larger than the sum of its proper divisors (26758385426).

31114401550 is a wasteful number, since it uses less digits than its factorization.

31114401550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622288043 (or 622288038 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 31114401550 its reverse (5510441113), we get a palindrome (36624842663).

The spelling of 31114401550 in words is "thirty-one billion, one hundred fourteen million, four hundred one thousand, five hundred fifty".