31322000232013 has 8 divisors (see below), whose sum is σ = 31348573015032. Its totient is φ = 31295436535296.

The previous prime is 31322000232001. The next prime is 31322000232037. The reversal of 31322000232013 is 31023200022313.

It can be written as a sum of positive squares in 4 ways, for example, as 10782994360009 + 20539005872004 = 3283747^2 + 4531998^2 .

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-31322000232013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322000232073) 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, 4634581 + ... + 9171877.

It is an arithmetic number, because the mean of its divisors is an integer number (3918571626879).

Almost surely, 2^{31322000232013} is an apocalyptic number.

It is an amenable number.

31322000232013 is a deficient number, since it is larger than the sum of its proper divisors (26572783019).

31322000232013 is a wasteful number, since it uses less digits than its factorization.

31322000232013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4543151.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31322000232013 its reverse (31023200022313), we get a palindrome (62345200254326).

The spelling of 31322000232013 in words is "thirty-one trillion, three hundred twenty-two billion, two hundred thirty-two thousand, thirteen".