11002121131 has 2 divisors, whose sum is σ = 11002121132. Its totient is φ = 11002121130.

The previous prime is 11002121107. The next prime is 11002121153. The reversal of 11002121131 is 13112120011.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11002121131 - 2⁷ = 11002121003 is a prime.

It is a super-2 number, since 2×11002121131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11002121531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5501060565 + 5501060566.

It is an arithmetic number, because the mean of its divisors is an integer number (5501060566).

Almost surely, 2^11002121131 is an apocalyptic number.

11002121131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11002121131 is an equidigital number, since it uses as much as digits as its factorization.

11002121131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11002121131 its reverse (13112120011), we get a palindrome (24114241142).

The spelling of 11002121131 in words is "eleven billion, two million, one hundred twenty-one thousand, one hundred thirty-one".