31421132042412 has 48 divisors (see below), whose sum is σ = 85040277781760. Its totient is φ = 8843474261952.

The previous prime is 31421132042401. The next prime is 31421132042423. The reversal of 31421132042412 is 21424023112413.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31421132042401) and next prime (31421132042423).

It is a self number, because there is not a number n which added to its sum of digits gives 31421132042412.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2791495087 + ... + 2791506342.

Almost surely, 2^{31421132042412} is an apocalyptic number.

It is an amenable number.

31421132042412 is an abundant number, since it is smaller than the sum of its proper divisors (53619145739348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31421132042412 is a wasteful number, since it uses less digits than its factorization.

31421132042412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5583001510 (or 5583001508 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 31421132042412 its reverse (21424023112413), we get a palindrome (52845155154825).

The spelling of 31421132042412 in words is "thirty-one trillion, four hundred twenty-one billion, one hundred thirty-two million, forty-two thousand, four hundred twelve".