113203100321 has 4 divisors (see below), whose sum is σ = 118124974272. Its totient is φ = 108281226372.

The previous prime is 113203100293. The next prime is 113203100369. The reversal of 113203100321 is 123001302311.

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 a de Polignac number, because none of the positive numbers 2^k-113203100321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113203100321.

It is not an unprimeable number, because it can be changed into a prime (113203100821) 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, 2460936941 + ... + 2460936986.

It is an arithmetic number, because the mean of its divisors is an integer number (29531243568).

Almost surely, 2^113203100321 is an apocalyptic number.

It is an amenable number.

113203100321 is a deficient number, since it is larger than the sum of its proper divisors (4921873951).

113203100321 is an equidigital number, since it uses as much as digits as its factorization.

113203100321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4921873950.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 113203100321 its reverse (123001302311), we get a palindrome (236204402632).

The spelling of 113203100321 in words is "one hundred thirteen billion, two hundred three million, one hundred thousand, three hundred twenty-one".