31312032101 has 8 divisors (see below), whose sum is σ = 36022168704. Its totient is φ = 26661142800.

The previous prime is 31312032049. The next prime is 31312032107. The reversal of 31312032101 is 10123021313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31312032101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31312032101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31312032107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14810690 + ... + 14812803.

It is an arithmetic number, because the mean of its divisors is an integer number (4502771088).

Almost surely, 2^31312032101 is an apocalyptic number.

It is an amenable number.

31312032101 is a deficient number, since it is larger than the sum of its proper divisors (4710136603).

31312032101 is a wasteful number, since it uses less digits than its factorization.

31312032101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29623651.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31312032101 its reverse (10123021313), we get a palindrome (41435053414).

The spelling of 31312032101 in words is "thirty-one billion, three hundred twelve million, thirty-two thousand, one hundred one".