101231310999 has 32 divisors (see below), whose sum is σ = 167431290880. Its totient is φ = 52976270592.

The previous prime is 101231310979. The next prime is 101231311001. The reversal of 101231310999 is 999013132101.

It is not a de Polignac number, because 101231310999 - 2¹⁶ = 101231245463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231310959) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1425214 + ... + 1494555.

It is an arithmetic number, because the mean of its divisors is an integer number (5232227840).

Almost surely, 2^101231310999 is an apocalyptic number.

101231310999 is a deficient number, since it is larger than the sum of its proper divisors (66199979881).

101231310999 is a wasteful number, since it uses less digits than its factorization.

101231310999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919919.

The product of its (nonzero) digits is 13122, while the sum is 39.

The spelling of 101231310999 in words is "one hundred one billion, two hundred thirty-one million, three hundred ten thousand, nine hundred ninety-nine".