11332313021 has 4 divisors (see below), whose sum is σ = 11573426112. Its totient is φ = 11091199932.

The previous prime is 11332313017. The next prime is 11332313023. The reversal of 11332313021 is 12031323311.

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 11332313021 - 2² = 11332313017 is a prime.

It is a super-2 number, since 2×11332313021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11332312984 and 11332313002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11332313023) 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, 120556475 + ... + 120556568.

It is an arithmetic number, because the mean of its divisors is an integer number (2893356528).

Almost surely, 2^11332313021 is an apocalyptic number.

It is an amenable number.

11332313021 is a deficient number, since it is larger than the sum of its proper divisors (241113091).

11332313021 is an equidigital number, since it uses as much as digits as its factorization.

11332313021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241113090.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 11332313021 its reverse (12031323311), we get a palindrome (23363636332).

The spelling of 11332313021 in words is "eleven billion, three hundred thirty-two million, three hundred thirteen thousand, twenty-one".