1111002131 has 2 divisors, whose sum is σ = 1111002132. Its totient is φ = 1111002130.

The previous prime is 1111002103. The next prime is 1111002161. The reversal of 1111002131 is 1312001111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111002131 - 2²⁶ = 1043893267 is a prime.

It is a super-2 number, since 2×1111002131² = 2468651470173082322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1111002161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555501065 + 555501066.

It is an arithmetic number, because the mean of its divisors is an integer number (555501066).

Almost surely, 2^1111002131 is an apocalyptic number.

1111002131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111002131 is an equidigital number, since it uses as much as digits as its factorization.

1111002131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1111002131 is about 33331.6985915810. The cubic root of 1111002131 is about 1035.7103048897.

Adding to 1111002131 its reverse (1312001111), we get a palindrome (2423003242).

The spelling of 1111002131 in words is "one billion, one hundred eleven million, two thousand, one hundred thirty-one".