101181809700 has 108 divisors (see below), whose sum is σ = 319048329600. Its totient is φ = 26820208320.

The previous prime is 101181809689. The next prime is 101181809713. The reversal of 101181809700 is 7908181101.

It is a happy number.

It is a super-2 number, since 2×101181809700² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 186300 + ... + 486899.

It is an arithmetic number, because the mean of its divisors is an integer number (2954151200).

Almost surely, 2^101181809700 is an apocalyptic number.

101181809700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101181809700 is an abundant number, since it is smaller than the sum of its proper divisors (217866519900).

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

101181809700 is a wasteful number, since it uses less digits than its factorization.

101181809700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673386 (or 673376 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 36.

The spelling of 101181809700 in words is "one hundred one billion, one hundred eighty-one million, eight hundred nine thousand, seven hundred".