11211132331 has 32 divisors (see below), whose sum is σ = 13281840000. Its totient is φ = 9457975296.

The previous prime is 11211132287. The next prime is 11211132337. The reversal of 11211132331 is 13323111211.

It is not a de Polignac number, because 11211132331 - 2²⁹ = 10674261419 is a prime.

It is a super-2 number, since 2×11211132331² (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 = 11211132299 and 11211132308.

It is not an unprimeable number, because it can be changed into a prime (11211132337) 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, 7844725 + ... + 7846153.

It is an arithmetic number, because the mean of its divisors is an integer number (415057500).

Almost surely, 2^11211132331 is an apocalyptic number.

11211132331 is a deficient number, since it is larger than the sum of its proper divisors (2070707669).

11211132331 is an equidigital number, since it uses as much as digits as its factorization.

11211132331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796 (or 1782 counting only the distinct ones).

The product of its digits is 108, while the sum is 19.

Adding to 11211132331 its reverse (13323111211), we get a palindrome (24534243542).

The spelling of 11211132331 in words is "eleven billion, two hundred eleven million, one hundred thirty-two thousand, three hundred thirty-one".