101000091000 has 64 divisors (see below), whose sum is σ = 315120293280. Its totient is φ = 26933356800.

The previous prime is 101000090999. The next prime is 101000091013. The reversal of 101000091000 is 190000101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16830349 + ... + 16836348.

Almost surely, 2^101000091000 is an apocalyptic number.

101000091000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101000091000 is an abundant number, since it is smaller than the sum of its proper divisors (214120202280).

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

101000091000 is a wasteful number, since it uses less digits than its factorization.

101000091000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33666721 (or 33666707 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 12.

Adding to 101000091000 its reverse (190000101), we get a palindrome (101190091101).

The spelling of 101000091000 in words is "one hundred one billion, ninety-one thousand".