31424331112 has 16 divisors (see below), whose sum is σ = 59108870340. Its totient is φ = 15661965696.

The previous prime is 31424331077. The next prime is 31424331119. The reversal of 31424331112 is 21113342413.

It can be written as a sum of positive squares in 2 ways, for example, as 19657722436 + 11766608676 = 140206^2 + 108474^2 .

It is a super-2 number, since 2×31424331112² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31424331119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6272323 + ... + 6277330.

Almost surely, 2^31424331112 is an apocalyptic number.

It is an amenable number.

31424331112 is a deficient number, since it is larger than the sum of its proper divisors (27684539228).

31424331112 is a wasteful number, since it uses less digits than its factorization.

31424331112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12549972 (or 12549968 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

Adding to 31424331112 its reverse (21113342413), we get a palindrome (52537673525).

The spelling of 31424331112 in words is "thirty-one billion, four hundred twenty-four million, three hundred thirty-one thousand, one hundred twelve".