1103131231331 has 2 divisors, whose sum is σ = 1103131231332. Its totient is φ = 1103131231330.

The previous prime is 1103131231309. The next prime is 1103131231343. The reversal of 1103131231331 is 1331321313011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1103131231331 - 2²² = 1103127037027 is a prime.

It is a super-2 number, since 2×1103131231331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1103131231297 and 1103131231306.

It is not a weakly prime, because it can be changed into another prime (1103131236331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551565615665 + 551565615666.

It is an arithmetic number, because the mean of its divisors is an integer number (551565615666).

Almost surely, 2^{1103131231331} is an apocalyptic number.

1103131231331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103131231331 is an equidigital number, since it uses as much as digits as its factorization.

1103131231331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 1103131231331 its reverse (1331321313011), we get a palindrome (2434452544342).

The spelling of 1103131231331 in words is "one trillion, one hundred three billion, one hundred thirty-one million, two hundred thirty-one thousand, three hundred thirty-one".