99573431311 has 16 divisors (see below), whose sum is σ = 103997818080. Its totient is φ = 95273418240.

The previous prime is 99573431281. The next prime is 99573431317. The reversal of 99573431311 is 11313437599.

It is a cyclic number.

It is not a de Polignac number, because 99573431311 - 2⁷ = 99573431183 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 (99573431317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199756 + ... + 488926.

It is an arithmetic number, because the mean of its divisors is an integer number (6499863630).

Almost surely, 2^99573431311 is an apocalyptic number.

99573431311 is a deficient number, since it is larger than the sum of its proper divisors (4424386769).

99573431311 is a wasteful number, since it uses less digits than its factorization.

99573431311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289386.

The product of its digits is 306180, while the sum is 46.

The spelling of 99573431311 in words is "ninety-nine billion, five hundred seventy-three million, four hundred thirty-one thousand, three hundred eleven".