11112031013 has 2 divisors, whose sum is σ = 11112031014. Its totient is φ = 11112031012.

The previous prime is 11112030967. The next prime is 11112031081. The reversal of 11112031013 is 31013021111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10574625889 + 537405124 = 102833^2 + 23182^2 .

It is a cyclic number.

It is not a de Polignac number, because 11112031013 - 2⁸ = 11112030757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11112031913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556015506 + 5556015507.

It is an arithmetic number, because the mean of its divisors is an integer number (5556015507).

Almost surely, 2^11112031013 is an apocalyptic number.

It is an amenable number.

11112031013 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112031013 is an equidigital number, since it uses as much as digits as its factorization.

11112031013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 11112031013 its reverse (31013021111), we get a palindrome (42125052124).

The spelling of 11112031013 in words is "eleven billion, one hundred twelve million, thirty-one thousand, thirteen".