31421452602312 has 192 divisors, whose sum is σ = 89752050984960. Its totient is φ = 9911157696000.

The previous prime is 31421452602269. The next prime is 31421452602343. The reversal of 31421452602312 is 21320625412413.

It is a happy number.

31421452602312 is a `hidden beast` number, since 3 + 1 + 4 + 2 + 1 + 45 + 2 + 602 + 3 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206819737 + ... + 206971607.

It is an arithmetic number, because the mean of its divisors is an integer number (467458598880).

Almost surely, 2^{31421452602312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31421452602312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44876025492480).

31421452602312 is an abundant number, since it is smaller than the sum of its proper divisors (58330598382648).

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

31421452602312 is a wasteful number, since it uses less digits than its factorization.

31421452602312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153244 (or 153237 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 31421452602312 in words is "thirty-one trillion, four hundred twenty-one billion, four hundred fifty-two million, six hundred two thousand, three hundred twelve".