1113312220331 has 2 divisors, whose sum is σ = 1113312220332. Its totient is φ = 1113312220330.

The previous prime is 1113312220283. The next prime is 1113312220333. The reversal of 1113312220331 is 1330222133111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1113312220331 - 2²² = 1113308026027 is a prime.

It is a super-2 number, since 2×1113312220331² (a number of 25 digits) contains 22 as substring.

Together with 1113312220333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113312220297 and 1113312220306.

It is not a weakly prime, because it can be changed into another prime (1113312220333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556656110165 + 556656110166.

It is an arithmetic number, because the mean of its divisors is an integer number (556656110166).

Almost surely, 2^{1113312220331} is an apocalyptic number.

1113312220331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113312220331 is an equidigital number, since it uses as much as digits as its factorization.

1113312220331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1113312220331 its reverse (1330222133111), we get a palindrome (2443534353442).

The spelling of 1113312220331 in words is "one trillion, one hundred thirteen billion, three hundred twelve million, two hundred twenty thousand, three hundred thirty-one".