111010001009993 has 2 divisors, whose sum is σ = 111010001009994. Its totient is φ = 111010001009992.

The previous prime is 111010001009983. The next prime is 111010001010031. The reversal of 111010001009993 is 399900100010111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96022595988544 + 14987405021449 = 9799112^2 + 3871357^2 .

It is a cyclic number.

It is not a de Polignac number, because 111010001009993 - 2⁴ = 111010001009977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (111010001009933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505000504996 + 55505000504997.

It is an arithmetic number, because the mean of its divisors is an integer number (55505000504997).

Almost surely, 2^{111010001009993} is an apocalyptic number.

It is an amenable number.

111010001009993 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010001009993 is an equidigital number, since it uses as much as digits as its factorization.

111010001009993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2187, while the sum is 35.

The spelling of 111010001009993 in words is "one hundred eleven trillion, ten billion, one million, nine thousand, nine hundred ninety-three".