31123232113 has 8 divisors (see below), whose sum is σ = 31444021440. Its totient is φ = 30802690800.

The previous prime is 31123232087. The next prime is 31123232123.

31123232113 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 31123232113 - 2⁵ = 31123232081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31123232123) 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, 195756 + ... + 317122.

It is an arithmetic number, because the mean of its divisors is an integer number (3930502680).

Almost surely, 2^31123232113 is an apocalyptic number.

It is an amenable number.

31123232113 is a deficient number, since it is larger than the sum of its proper divisors (320789327).

31123232113 is a wasteful number, since it uses less digits than its factorization.

31123232113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124007.

The product of its digits is 648, while the sum is 22.

The spelling of 31123232113 in words is "thirty-one billion, one hundred twenty-three million, two hundred thirty-two thousand, one hundred thirteen".