113131003021 has 4 divisors (see below), whose sum is σ = 113331946752. Its totient is φ = 112930059292.

The previous prime is 113131002961. The next prime is 113131003103. The reversal of 113131003021 is 120300131311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113131003021 - 2¹⁹ = 113130478733 is a prime.

It is a super-2 number, since 2×113131003021² (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 = 113131002986 and 113131003004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113131003121) 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, 100471021 + ... + 100472146.

It is an arithmetic number, because the mean of its divisors is an integer number (28332986688).

Almost surely, 2^113131003021 is an apocalyptic number.

It is an amenable number.

113131003021 is a deficient number, since it is larger than the sum of its proper divisors (200943731).

113131003021 is an equidigital number, since it uses as much as digits as its factorization.

113131003021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200943730.

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

Adding to 113131003021 its reverse (120300131311), we get a palindrome (233431134332).

The spelling of 113131003021 in words is "one hundred thirteen billion, one hundred thirty-one million, three thousand, twenty-one".