11211312022331 has 32 divisors (see below), whose sum is σ = 12007304483328. Its totient is φ = 10442065455360.

The previous prime is 11211312022283. The next prime is 11211312022343. The reversal of 11211312022331 is 13322021311211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11211312022331 - 2³⁴ = 11194132153147 is a prime.

It is a super-2 number, since 2×11211312022331² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11211312022297 and 11211312022306.

It is not an unprimeable number, because it can be changed into a prime (11211312022231) 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, 1174323500 + ... + 1174333046.

It is an arithmetic number, because the mean of its divisors is an integer number (375228265104).

Almost surely, 2^{11211312022331} is an apocalyptic number.

11211312022331 is a deficient number, since it is larger than the sum of its proper divisors (795992460997).

11211312022331 is a wasteful number, since it uses less digits than its factorization.

11211312022331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11891.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 11211312022331 its reverse (13322021311211), we get a palindrome (24533333333542).

The spelling of 11211312022331 in words is "eleven trillion, two hundred eleven billion, three hundred twelve million, twenty-two thousand, three hundred thirty-one".