31325145442012 has 24 divisors (see below), whose sum is σ = 58044487095504. Its totient is φ = 14741032787712.

The previous prime is 31325145441881. The next prime is 31325145442021. The reversal of 31325145442012 is 21024454152313.

It is a congruent number.

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, 1496763 + ... + 8055469.

It is an arithmetic number, because the mean of its divisors is an integer number (2418520295646).

Almost surely, 2^{31325145442012} is an apocalyptic number.

It is an amenable number.

31325145442012 is a deficient number, since it is larger than the sum of its proper divisors (26719341653492).

31325145442012 is a wasteful number, since it uses less digits than its factorization.

31325145442012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6628965 (or 6628963 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 31325145442012 its reverse (21024454152313), we get a palindrome (52349599594325).

The spelling of 31325145442012 in words is "thirty-one trillion, three hundred twenty-five billion, one hundred forty-five million, four hundred forty-two thousand, twelve".