31012452505444 has 24 divisors (see below), whose sum is σ = 57325343575808. Its totient is φ = 14657048068320.

The previous prime is 31012452505439. The next prime is 31012452505453. The reversal of 31012452505444 is 44450525421013.

It is a junction number, because it is equal to n+sod(n) for n = 31012452505397 and 31012452505406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2908139127 + ... + 2908149790.

Almost surely, 2^{31012452505444} is an apocalyptic number.

It is an amenable number.

31012452505444 is a deficient number, since it is larger than the sum of its proper divisors (26312891070364).

31012452505444 is a wasteful number, since it uses less digits than its factorization.

31012452505444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5816288995 (or 5816288993 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 31012452505444 its reverse (44450525421013), we get a palindrome (75462977926457).

The spelling of 31012452505444 in words is "thirty-one trillion, twelve billion, four hundred fifty-two million, five hundred five thousand, four hundred forty-four".