31324004013144 has 64 divisors (see below), whose sum is σ = 80159605891200. Its totient is φ = 10194894210816.

The previous prime is 31324004013143. The next prime is 31324004013167. The reversal of 31324004013144 is 44131040042313.

It is a super-2 number, since 2×31324004013144² (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 (31324004013143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2474389 + ... + 8292804.

It is an arithmetic number, because the mean of its divisors is an integer number (1252493842050).

Almost surely, 2^{31324004013144} is an apocalyptic number.

It is an amenable number.

31324004013144 is an abundant number, since it is smaller than the sum of its proper divisors (48835601878056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31324004013144 is a wasteful number, since it uses less digits than its factorization.

31324004013144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10770064 (or 10770060 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 31324004013144 its reverse (44131040042313), we get a palindrome (75455044055457).

The spelling of 31324004013144 in words is "thirty-one trillion, three hundred twenty-four billion, four million, thirteen thousand, one hundred forty-four".