31054225013 has 4 divisors (see below), whose sum is σ = 35490542880. Its totient is φ = 26617907148.

The previous prime is 31054225009. The next prime is 31054225051. The reversal of 31054225013 is 31052245013.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31054225013 - 2² = 31054225009 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 (31054225313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2218158923 + ... + 2218158936.

It is an arithmetic number, because the mean of its divisors is an integer number (8872635720).

Almost surely, 2^31054225013 is an apocalyptic number.

It is an amenable number.

31054225013 is a deficient number, since it is larger than the sum of its proper divisors (4436317867).

31054225013 is an equidigital number, since it uses as much as digits as its factorization.

31054225013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4436317866.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 31054225013 in words is "thirty-one billion, fifty-four million, two hundred twenty-five thousand, thirteen".