31112144132 has 6 divisors (see below), whose sum is σ = 54446252238. Its totient is φ = 15556072064.

The previous prime is 31112144101. The next prime is 31112144171. The reversal of 31112144132 is 23144121113.

It can be written as a sum of positive squares in only one way, i.e., 29948379136 + 1163764996 = 173056^2 + 34114^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31112144098 and 31112144107.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3889018013 + ... + 3889018020.

It is an arithmetic number, because the mean of its divisors is an integer number (9074375373).

Almost surely, 2^31112144132 is an apocalyptic number.

It is an amenable number.

31112144132 is a deficient number, since it is larger than the sum of its proper divisors (23334108106).

31112144132 is a wasteful number, since it uses less digits than its factorization.

31112144132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7778036037 (or 7778036035 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 31112144132 its reverse (23144121113), we get a palindrome (54256265245).

The spelling of 31112144132 in words is "thirty-one billion, one hundred twelve million, one hundred forty-four thousand, one hundred thirty-two".