113203220421 has 8 divisors (see below), whose sum is σ = 150939330304. Its totient is φ = 75467962080.

The previous prime is 113203220357. The next prime is 113203220491. The reversal of 113203220421 is 124022302311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113203220421 - 2⁶ = 113203220357 is a prime.

It is a super-2 number, since 2×113203220421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113203220491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227385 + ... + 527361.

It is an arithmetic number, because the mean of its divisors is an integer number (18867416288).

Almost surely, 2^113203220421 is an apocalyptic number.

It is an amenable number.

113203220421 is a deficient number, since it is larger than the sum of its proper divisors (37736109883).

113203220421 is a wasteful number, since it uses less digits than its factorization.

113203220421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425771.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 113203220421 its reverse (124022302311), we get a palindrome (237225522732).

The spelling of 113203220421 in words is "one hundred thirteen billion, two hundred three million, two hundred twenty thousand, four hundred twenty-one".