113103102031 has 4 divisors (see below), whose sum is σ = 113118588072. Its totient is φ = 113087615992.

The previous prime is 113103102023. The next prime is 113103102097. The reversal of 113103102031 is 130201301311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130201301311 = 19 ⋅6852700069.

It is a cyclic number.

It is not a de Polignac number, because 113103102031 - 2³ = 113103102023 is a prime.

It is a super-2 number, since 2×113103102031² (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 = 113103101996 and 113103102014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113103100031) 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, 7732060 + ... + 7746673.

It is an arithmetic number, because the mean of its divisors is an integer number (28279647018).

Almost surely, 2^113103102031 is an apocalyptic number.

113103102031 is a deficient number, since it is larger than the sum of its proper divisors (15486041).

113103102031 is an equidigital number, since it uses as much as digits as its factorization.

113103102031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15486040.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 113103102031 its reverse (130201301311), we get a palindrome (243304403342).

The spelling of 113103102031 in words is "one hundred thirteen billion, one hundred three million, one hundred two thousand, thirty-one".