11111131007 has 2 divisors, whose sum is σ = 11111131008. Its totient is φ = 11111131006.

The previous prime is 11111130991. The next prime is 11111131027. The reversal of 11111131007 is 70013111111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11111131007 - 2⁴ = 11111130991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111131027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555565503 + 5555565504.

It is an arithmetic number, because the mean of its divisors is an integer number (5555565504).

Almost surely, 2^11111131007 is an apocalyptic number.

11111131007 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111131007 is an equidigital number, since it uses as much as digits as its factorization.

11111131007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21, while the sum is 17.

Adding to 11111131007 its reverse (70013111111), we get a palindrome (81124242118).

The spelling of 11111131007 in words is "eleven billion, one hundred eleven million, one hundred thirty-one thousand, seven".