113001121031 has 4 divisors (see below), whose sum is σ = 113003995632. Its totient is φ = 112998246432.

The previous prime is 113001121027. The next prime is 113001121063. The reversal of 113001121031 is 130121100311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130121100311 = 127 ⋅1024575593.

It is a cyclic number.

It is not a de Polignac number, because 113001121031 - 2² = 113001121027 is a prime.

It is a super-2 number, since 2×113001121031² (a number of 23 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 = 113001120997 and 113001121015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113001121091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377506 + ... + 1457231.

It is an arithmetic number, because the mean of its divisors is an integer number (28250998908).

Almost surely, 2^113001121031 is an apocalyptic number.

113001121031 is a deficient number, since it is larger than the sum of its proper divisors (2874601).

113001121031 is an equidigital number, since it uses as much as digits as its factorization.

113001121031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874600.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 113001121031 its reverse (130121100311), we get a palindrome (243122221342).

The spelling of 113001121031 in words is "one hundred thirteen billion, one million, one hundred twenty-one thousand, thirty-one".