31143324314412 has 72 divisors (see below), whose sum is σ = 79964038745136. Its totient is φ = 10217762463744.

The previous prime is 31143324314393. The next prime is 31143324314429. The reversal of 31143324314412 is 21441342334113.

31143324314412 is a `hidden beast` number, since 3 + 1 + 1 + 4 + 3 + 324 + 314 + 4 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2369373 + ... + 8240180.

It is an arithmetic number, because the mean of its divisors is an integer number (1110611649238).

Almost surely, 2^{31143324314412} is an apocalyptic number.

It is an amenable number.

31143324314412 is an abundant number, since it is smaller than the sum of its proper divisors (48820714430724).

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

31143324314412 is a wasteful number, since it uses less digits than its factorization.

31143324314412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10610847 (or 10610842 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

Adding to 31143324314412 its reverse (21441342334113), we get a palindrome (52584666648525).

The spelling of 31143324314412 in words is "thirty-one trillion, one hundred forty-three billion, three hundred twenty-four million, three hundred fourteen thousand, four hundred twelve".