31203020130011 has 8 divisors (see below), whose sum is σ = 32845430492880. Its totient is φ = 29560624381728.

The previous prime is 31203020129999. The next prime is 31203020130017. The reversal of 31203020130011 is 11003102030213.

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-31203020130011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31203020130017) 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, 872645 + ... + 7947801.

It is an arithmetic number, because the mean of its divisors is an integer number (4105678811610).

Almost surely, 2^{31203020130011} is an apocalyptic number.

31203020130011 is a deficient number, since it is larger than the sum of its proper divisors (1642410362869).

31203020130011 is a wasteful number, since it uses less digits than its factorization.

31203020130011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7307293.

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

Adding to 31203020130011 its reverse (11003102030213), we get a palindrome (42206122160224).

The spelling of 31203020130011 in words is "thirty-one trillion, two hundred three billion, twenty million, one hundred thirty thousand, eleven".