31430551055001 has 12 divisors (see below), whose sum is σ = 48749426126352. Its totient is φ = 17960314888488.

The previous prime is 31430551054993. The next prime is 31430551055039. The reversal of 31430551055001 is 10055015503413.

It is not a de Polignac number, because 31430551055001 - 2³ = 31430551054993 is a prime.

It is a super-2 number, since 2×31430551055001² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31430551015001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106906636095 + ... + 106906636388.

It is an arithmetic number, because the mean of its divisors is an integer number (4062452177196).

Almost surely, 2^{31430551055001} is an apocalyptic number.

It is an amenable number.

31430551055001 is a deficient number, since it is larger than the sum of its proper divisors (17318875071351).

31430551055001 is a wasteful number, since it uses less digits than its factorization.

31430551055001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213813272500 (or 213813272493 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

Adding to 31430551055001 its reverse (10055015503413), we get a palindrome (41485566558414).

The spelling of 31430551055001 in words is "thirty-one trillion, four hundred thirty billion, five hundred fifty-one million, fifty-five thousand, one".