31442653412 has 24 divisors (see below), whose sum is σ = 56946690360. Its totient is φ = 15172640000.

The previous prime is 31442653393. The next prime is 31442653421. The reversal of 31442653412 is 21435624413.

It can be written as a sum of positive squares in 4 ways, for example, as 559511716 + 30883141696 = 23654^2 + 175736^2 .

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, 215912 + ... + 330912.

It is an arithmetic number, because the mean of its divisors is an integer number (2372778765).

Almost surely, 2^31442653412 is an apocalyptic number.

It is an amenable number.

31442653412 is a deficient number, since it is larger than the sum of its proper divisors (25504036948).

31442653412 is a wasteful number, since it uses less digits than its factorization.

31442653412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117391 (or 117389 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The spelling of 31442653412 in words is "thirty-one billion, four hundred forty-two million, six hundred fifty-three thousand, four hundred twelve".