10111001009951 has 2 divisors, whose sum is σ = 10111001009952. Its totient is φ = 10111001009950.

The previous prime is 10111001009911. The next prime is 10111001009957. The reversal of 10111001009951 is 15990010011101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10111001009951 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111001009957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055500504975 + 5055500504976.

It is an arithmetic number, because the mean of its divisors is an integer number (5055500504976).

Almost surely, 2^{10111001009951} is an apocalyptic number.

10111001009951 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111001009951 is an equidigital number, since it uses as much as digits as its factorization.

10111001009951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 29.

The spelling of 10111001009951 in words is "ten trillion, one hundred eleven billion, one million, nine thousand, nine hundred fifty-one".