31400144032311 has 32 divisors (see below), whose sum is σ = 46759095820800. Its totient is φ = 20825405475840.

The previous prime is 31400144032273. The next prime is 31400144032319. The reversal of 31400144032311 is 11323044100413.

31400144032311 is a `hidden beast` number, since 3 + 14 + 0 + 0 + 14 + 403 + 231 + 1 = 666.

It is not a de Polignac number, because 31400144032311 - 2¹⁷ = 31400143901239 is a prime.

It is a super-2 number, since 2×31400144032311² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31400144032319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6142071 + ... + 10026231.

It is an arithmetic number, because the mean of its divisors is an integer number (1461221744400).

Almost surely, 2^{31400144032311} is an apocalyptic number.

31400144032311 is a deficient number, since it is larger than the sum of its proper divisors (15358951788489).

31400144032311 is a wasteful number, since it uses less digits than its factorization.

31400144032311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885716 (or 3885710 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 31400144032311 its reverse (11323044100413), we get a palindrome (42723188132724).

The spelling of 31400144032311 in words is "thirty-one trillion, four hundred billion, one hundred forty-four million, thirty-two thousand, three hundred eleven".