31551114051 has 6 divisors (see below), whose sum is σ = 45573831420. Its totient is φ = 21034076028.

The previous prime is 31551114043. The next prime is 31551114059. The reversal of 31551114051 is 15041115513.

31551114051 is a `hidden beast` number, since 3 + 1 + 5 + 511 + 140 + 5 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (31551114043) and next prime (31551114059).

It is not a de Polignac number, because 31551114051 - 2³ = 31551114043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31551114059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1752839661 + ... + 1752839678.

It is an arithmetic number, because the mean of its divisors is an integer number (7595638570).

Almost surely, 2^31551114051 is an apocalyptic number.

31551114051 is a deficient number, since it is larger than the sum of its proper divisors (14022717369).

31551114051 is a wasteful number, since it uses less digits than its factorization.

31551114051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3505679345 (or 3505679342 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

Adding to 31551114051 its reverse (15041115513), we get a palindrome (46592229564).

The spelling of 31551114051 in words is "thirty-one billion, five hundred fifty-one million, one hundred fourteen thousand, fifty-one".