11343220231 has 16 divisors (see below), whose sum is σ = 13047177024. Its totient is φ = 9660213504.

The previous prime is 11343220183. The next prime is 11343220237. The reversal of 11343220231 is 13202234311.

It is a cyclic number.

It is not a de Polignac number, because 11343220231 - 2²³ = 11334831623 is a prime.

It is a super-2 number, since 2×11343220231² (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 (11343220237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3361261 + ... + 3364633.

It is an arithmetic number, because the mean of its divisors is an integer number (815448564).

Almost surely, 2^11343220231 is an apocalyptic number.

11343220231 is a deficient number, since it is larger than the sum of its proper divisors (1703956793).

11343220231 is a wasteful number, since it uses less digits than its factorization.

11343220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6330.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 11343220231 its reverse (13202234311), we get a palindrome (24545454542).

The spelling of 11343220231 in words is "eleven billion, three hundred forty-three million, two hundred twenty thousand, two hundred thirty-one".