99311323121101 has 48 divisors (see below), whose sum is σ = 124972144786944. Its totient is φ = 78222349852416.

The previous prime is 99311323121081. The next prime is 99311323121107. The reversal of 99311323121101 is 10112132311399.

It is a happy number.

It is not a de Polignac number, because 99311323121101 - 2¹³ = 99311323112909 is a prime.

It is a super-2 number, since 2×99311323121101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99311323121107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 733577320 + ... + 733712686.

It is an arithmetic number, because the mean of its divisors is an integer number (2603586349728).

Almost surely, 2^{99311323121101} is an apocalyptic number.

99311323121101 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

99311323121101 is a deficient number, since it is larger than the sum of its proper divisors (25660821665843).

99311323121101 is a wasteful number, since it uses less digits than its factorization.

99311323121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140570 (or 140563 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 37.

The spelling of 99311323121101 in words is "ninety-nine trillion, three hundred eleven billion, three hundred twenty-three million, one hundred twenty-one thousand, one hundred one".