31124400442112 has 18 divisors (see below), whose sum is σ = 62127221195508. Its totient is φ = 15562200220928.

The previous prime is 31124400442103. The next prime is 31124400442139. The reversal of 31124400442112 is 21124400442113.

It is a super-2 number, since 2×31124400442112² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60789844358 + ... + 60789844869.

Almost surely, 2^{31124400442112} is an apocalyptic number.

31124400442112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31124400442112 is a deficient number, since it is larger than the sum of its proper divisors (31002820753396).

31124400442112 is an equidigital number, since it uses as much as digits as its factorization.

31124400442112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121579689243 (or 121579689229 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 31124400442112 its reverse (21124400442113), we get a palindrome (52248800884225).

Subtracting from 31124400442112 its reverse (21124400442113), we obtain a palindrome (9999999999999).

The spelling of 31124400442112 in words is "thirty-one trillion, one hundred twenty-four billion, four hundred million, four hundred forty-two thousand, one hundred twelve".