20901209110 has 8 divisors (see below), whose sum is σ = 37622176416. Its totient is φ = 8360483640.

The previous prime is 20901209107. The next prime is 20901209123. The reversal of 20901209110 is 1190210902.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1045060446 + ... + 1045060465.

It is an arithmetic number, because the mean of its divisors is an integer number (4702772052).

Almost surely, 2^20901209110 is an apocalyptic number.

20901209110 is a deficient number, since it is larger than the sum of its proper divisors (16720967306).

20901209110 is a wasteful number, since it uses less digits than its factorization.

20901209110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090120918.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 20901209110 in words is "twenty billion, nine hundred one million, two hundred nine thousand, one hundred ten".