100109736921 has 8 divisors (see below), whose sum is σ = 134375486400. Its totient is φ = 66291906032.

The previous prime is 100109736893. The next prime is 100109736973. The reversal of 100109736921 is 129637901001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100109736921 - 2²³ = 100101348313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100109736921.

It is not an unprimeable number, because it can be changed into a prime (100109716921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111979125 + ... + 111980018.

It is an arithmetic number, because the mean of its divisors is an integer number (16796935800).

Almost surely, 2^100109736921 is an apocalyptic number.

It is an amenable number.

100109736921 is a deficient number, since it is larger than the sum of its proper divisors (34265749479).

100109736921 is a wasteful number, since it uses less digits than its factorization.

100109736921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223959295.

The product of its (nonzero) digits is 20412, while the sum is 39.

The spelling of 100109736921 in words is "one hundred billion, one hundred nine million, seven hundred thirty-six thousand, nine hundred twenty-one".