11313203421 has 32 divisors (see below), whose sum is σ = 17108439040. Its totient is φ = 6592135104.

The previous prime is 11313203371. The next prime is 11313203423. The reversal of 11313203421 is 12430231311.

It is not a de Polignac number, because 11313203421 - 2¹⁴ = 11313187037 is a prime.

It is a super-2 number, since 2×11313203421² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11313203423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2474880 + ... + 2479446.

It is an arithmetic number, because the mean of its divisors is an integer number (534638720).

Almost surely, 2^11313203421 is an apocalyptic number.

It is an amenable number.

11313203421 is a deficient number, since it is larger than the sum of its proper divisors (5795235619).

11313203421 is a wasteful number, since it uses less digits than its factorization.

11313203421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7945.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11313203421 its reverse (12430231311), we get a palindrome (23743434732).

The spelling of 11313203421 in words is "eleven billion, three hundred thirteen million, two hundred three thousand, four hundred twenty-one".