31123032113 has 8 divisors (see below), whose sum is σ = 32006622528. Its totient is φ = 30250418224.

The previous prime is 31123032091. The next prime is 31123032139.

31123032113 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 31123032113 - 2¹⁶ = 31122966577 is a prime.

It is a super-3 number, since 3×31123032113³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31123032163) 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, 2738381 + ... + 2749722.

It is an arithmetic number, because the mean of its divisors is an integer number (4000827816).

Almost surely, 2^31123032113 is an apocalyptic number.

It is an amenable number.

31123032113 is a deficient number, since it is larger than the sum of its proper divisors (883590415).

31123032113 is a wasteful number, since it uses less digits than its factorization.

31123032113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5488263.

The product of its (nonzero) digits is 324, while the sum is 20.

It can be divided in two parts, 311230 and 32113, that added together give a palindrome (343343).

The spelling of 31123032113 in words is "thirty-one billion, one hundred twenty-three million, thirty-two thousand, one hundred thirteen".