1111100131 has 2 divisors, whose sum is σ = 1111100132. Its totient is φ = 1111100130.

The previous prime is 1111100117. The next prime is 1111100173. The reversal of 1111100131 is 1310011111.

It is a weak prime.

It is an emirp because it is prime and its reverse (1310011111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1111100131 - 2¹⁷ = 1110969059 is a prime.

It is a super-2 number, since 2×1111100131² = 2469087002216434322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1111100101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555550065 + 555550066.

It is an arithmetic number, because the mean of its divisors is an integer number (555550066).

Almost surely, 2^1111100131 is an apocalyptic number.

1111100131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111100131 is an equidigital number, since it uses as much as digits as its factorization.

1111100131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3, while the sum is 10.

The square root of 1111100131 is about 33333.1686312598. The cubic root of 1111100131 is about 1035.7407568642.

Adding to 1111100131 its reverse (1310011111), we get a palindrome (2421111242).

The spelling of 1111100131 in words is "one billion, one hundred eleven million, one hundred thousand, one hundred thirty-one".