31123432113 has 8 divisors (see below), whose sum is σ = 42928872000. Its totient is φ = 20033473488.

The previous prime is 31123432103. The next prime is 31123432177.

31123432113 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 31123432113 - 2⁹ = 31123431601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31123432103) 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, 178870213 + ... + 178870386.

It is an arithmetic number, because the mean of its divisors is an integer number (5366109000).

Almost surely, 2^31123432113 is an apocalyptic number.

It is an amenable number.

31123432113 is a deficient number, since it is larger than the sum of its proper divisors (11805439887).

31123432113 is a wasteful number, since it uses less digits than its factorization.

31123432113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357740631.

The product of its digits is 1296, while the sum is 24.

The spelling of 31123432113 in words is "thirty-one billion, one hundred twenty-three million, four hundred thirty-two thousand, one hundred thirteen".