99111121313101 has 4 divisors (see below), whose sum is σ = 99331858777500. Its totient is φ = 98890383848704.

The previous prime is 99111121313093. The next prime is 99111121313119. The reversal of 99111121313101 is 10131312111199.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53443395629001 + 45667725684100 = 7310499^2 + 6757790^2 .

It is a cyclic number.

It is not a de Polignac number, because 99111121313101 - 2³ = 99111121313093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99111121313131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110368731526 + ... + 110368732423.

It is an arithmetic number, because the mean of its divisors is an integer number (24832964694375).

Almost surely, 2^{99111121313101} is an apocalyptic number.

It is an amenable number.

99111121313101 is a deficient number, since it is larger than the sum of its proper divisors (220737464399).

99111121313101 is a wasteful number, since it uses less digits than its factorization.

99111121313101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220737464398.

The product of its (nonzero) digits is 1458, while the sum is 34.

The spelling of 99111121313101 in words is "ninety-nine trillion, one hundred eleven billion, one hundred twenty-one million, three hundred thirteen thousand, one hundred one".