101399238798 has 144 divisors (see below), whose sum is σ = 253365810768. Its totient is φ = 26869708800.

The previous prime is 101399238739. The next prime is 101399238799. The reversal of 101399238798 is 897832993101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101399238799) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3392238 + ... + 3421998.

It is an arithmetic number, because the mean of its divisors is an integer number (1759484797).

Almost surely, 2^101399238798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101399238798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126682905384).

101399238798 is an abundant number, since it is smaller than the sum of its proper divisors (151966571970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101399238798 is a wasteful number, since it uses less digits than its factorization.

101399238798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29839 (or 29809 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 60.

The spelling of 101399238798 in words is "one hundred one billion, three hundred ninety-nine million, two hundred thirty-eight thousand, seven hundred ninety-eight".