10111213513 has 2 divisors, whose sum is σ = 10111213514. Its totient is φ = 10111213512.

The previous prime is 10111213501. The next prime is 10111213523. The reversal of 10111213513 is 31531211101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8941026249 + 1170187264 = 94557^2 + 34208^2 .

It is a cyclic number.

It is not a de Polignac number, because 10111213513 - 2⁹ = 10111213001 is a prime.

It is not a weakly prime, because it can be changed into another prime (10111213523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055606756 + 5055606757.

It is an arithmetic number, because the mean of its divisors is an integer number (5055606757).

Almost surely, 2^10111213513 is an apocalyptic number.

It is an amenable number.

10111213513 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111213513 is an equidigital number, since it uses as much as digits as its factorization.

10111213513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 19.

Adding to 10111213513 its reverse (31531211101), we get a palindrome (41642424614).

The spelling of 10111213513 in words is "ten billion, one hundred eleven million, two hundred thirteen thousand, five hundred thirteen".