31315163652061 has 8 divisors (see below), whose sum is σ = 31334645182464. Its totient is φ = 31295682907440.

The previous prime is 31315163652053. The next prime is 31315163652083. The reversal of 31315163652061 is 16025636151313.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31315163652061 - 2³ = 31315163652053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31315163651999 and 31315163652017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31315163652761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93304731 + ... + 93639751.

It is an arithmetic number, because the mean of its divisors is an integer number (3916830647808).

Almost surely, 2^{31315163652061} is an apocalyptic number.

It is an amenable number.

31315163652061 is a deficient number, since it is larger than the sum of its proper divisors (19481530403).

31315163652061 is a wasteful number, since it uses less digits than its factorization.

31315163652061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392891.

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 31315163652061 in words is "thirty-one trillion, three hundred fifteen billion, one hundred sixty-three million, six hundred fifty-two thousand, sixty-one".