113031012231031 has 4 divisors (see below), whose sum is σ = 114622998318864. Its totient is φ = 111439026143200.

The previous prime is 113031012231019. The next prime is 113031012231037. The reversal of 113031012231031 is 130132210130311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113031012231031 - 2⁵ = 113031012230999 is a prime.

It is a super-2 number, since 2×113031012231031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113031012230993 and 113031012231011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113031012231037) 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, 795993043810 + ... + 795993043951.

It is an arithmetic number, because the mean of its divisors is an integer number (28655749579716).

Almost surely, 2^{113031012231031} is an apocalyptic number.

113031012231031 is a deficient number, since it is larger than the sum of its proper divisors (1591986087833).

113031012231031 is an equidigital number, since it uses as much as digits as its factorization.

113031012231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591986087832.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 113031012231031 its reverse (130132210130311), we get a palindrome (243163222361342).

The spelling of 113031012231031 in words is "one hundred thirteen trillion, thirty-one billion, twelve million, two hundred thirty-one thousand, thirty-one".