113202121213 has 4 divisors (see below), whose sum is σ = 113472293760. Its totient is φ = 112931948668.

The previous prime is 113202121177. The next prime is 113202121273. The reversal of 113202121213 is 312121202311.

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 113202121213 - 2⁹ = 113202120701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113202121273) 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, 135085645 + ... + 135086482.

It is an arithmetic number, because the mean of its divisors is an integer number (28368073440).

Almost surely, 2^113202121213 is an apocalyptic number.

It is an amenable number.

113202121213 is a deficient number, since it is larger than the sum of its proper divisors (270172547).

113202121213 is an equidigital number, since it uses as much as digits as its factorization.

113202121213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270172546.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 113202121213 its reverse (312121202311), we get a palindrome (425323323524).

The spelling of 113202121213 in words is "one hundred thirteen billion, two hundred two million, one hundred twenty-one thousand, two hundred thirteen".