101113321020 has 96 divisors (see below), whose sum is σ = 290856853056. Its totient is φ = 26226892800.

The previous prime is 101113321013. The next prime is 101113321061. The reversal of 101113321020 is 20123311101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12385740 + ... + 12393900.

It is an arithmetic number, because the mean of its divisors is an integer number (3029758886).

Almost surely, 2^101113321020 is an apocalyptic number.

101113321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101113321020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145428426528).

101113321020 is an abundant number, since it is smaller than the sum of its proper divisors (189743532036).

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

101113321020 is a wasteful number, since it uses less digits than its factorization.

101113321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13791 (or 13789 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 101113321020 its reverse (20123311101), we get a palindrome (121236632121).

The spelling of 101113321020 in words is "one hundred one billion, one hundred thirteen million, three hundred twenty-one thousand, twenty".