31201012013 has 8 divisors (see below), whose sum is σ = 33644224320. Its totient is φ = 28837905120.

The previous prime is 31201011991. The next prime is 31201012019. The reversal of 31201012013 is 31021010213.

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

It is not a de Polignac number, because 31201012013 - 2²² = 31196817709 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 (31201012019) 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, 20025545 + ... + 20027102.

It is an arithmetic number, because the mean of its divisors is an integer number (4205528040).

Almost surely, 2^31201012013 is an apocalyptic number.

It is an amenable number.

31201012013 is a deficient number, since it is larger than the sum of its proper divisors (2443212307).

31201012013 is a wasteful number, since it uses less digits than its factorization.

31201012013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40052707.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 31201012013 its reverse (31021010213), we get a palindrome (62222022226).

The spelling of 31201012013 in words is "thirty-one billion, two hundred one million, twelve thousand, thirteen".