1111311322331 has 32 divisors (see below), whose sum is σ = 1286225461248. Its totient is φ = 940519641600.

The previous prime is 1111311322327. The next prime is 1111311322357. The reversal of 1111311322331 is 1332231131111.

It is not a de Polignac number, because 1111311322331 - 2² = 1111311322327 is a prime.

It is a super-2 number, since 2×1111311322331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1111311322297 and 1111311322306.

It is not an unprimeable number, because it can be changed into a prime (1111311322831) 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, 165051041 + ... + 165057773.

It is an arithmetic number, because the mean of its divisors is an integer number (40194545664).

Almost surely, 2^{1111311322331} is an apocalyptic number.

1111311322331 is a deficient number, since it is larger than the sum of its proper divisors (174914138917).

1111311322331 is a wasteful number, since it uses less digits than its factorization.

1111311322331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731.

The product of its digits is 324, while the sum is 23.

Adding to 1111311322331 its reverse (1332231131111), we get a palindrome (2443542453442).

The spelling of 1111311322331 in words is "one trillion, one hundred eleven billion, three hundred eleven million, three hundred twenty-two thousand, three hundred thirty-one".