31123322113 has 8 divisors (see below), whose sum is σ = 33584600000. Its totient is φ = 28671640848.

The previous prime is 31123322099. The next prime is 31123322117. The reversal of 31123322113 is 31122332113.

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 31123322113 - 2²⁹ = 30586451201 is a prime.

It is a super-2 number, since 2×31123322113² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31123322117) 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, 2392413 + ... + 2405386.

It is an arithmetic number, because the mean of its divisors is an integer number (4198075000).

Almost surely, 2^31123322113 is an apocalyptic number.

It is an amenable number.

31123322113 is a deficient number, since it is larger than the sum of its proper divisors (2461277887).

31123322113 is a wasteful number, since it uses less digits than its factorization.

31123322113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798311.

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

Adding to 31123322113 its reverse (31122332113), we get a palindrome (62245654226).

The spelling of 31123322113 in words is "thirty-one billion, one hundred twenty-three million, three hundred twenty-two thousand, one hundred thirteen".