10113132421 has 4 divisors (see below), whose sum is σ = 11557865632. Its totient is φ = 8668399212.

The previous prime is 10113132383. The next prime is 10113132433. The reversal of 10113132421 is 12423131101.

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 10113132421 - 2⁹ = 10113131909 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 (10113132221) 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, 722366595 + ... + 722366608.

It is an arithmetic number, because the mean of its divisors is an integer number (2889466408).

Almost surely, 2^10113132421 is an apocalyptic number.

It is an amenable number.

10113132421 is a deficient number, since it is larger than the sum of its proper divisors (1444733211).

10113132421 is an equidigital number, since it uses as much as digits as its factorization.

10113132421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444733210.

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

Adding to 10113132421 its reverse (12423131101), we get a palindrome (22536263522).

The spelling of 10113132421 in words is "ten billion, one hundred thirteen million, one hundred thirty-two thousand, four hundred twenty-one".