20902000101 has 8 divisors (see below), whose sum is σ = 27884220480. Its totient is φ = 13927223232.

The previous prime is 20902000019. The next prime is 20902000127. The reversal of 20902000101 is 10100020902.

It is a happy number.

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

It is not a de Polignac number, because 20902000101 - 2⁷ = 20901999973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20902000001) 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, 1854321 + ... + 1865558.

It is an arithmetic number, because the mean of its divisors is an integer number (3485527560).

Almost surely, 2^20902000101 is an apocalyptic number.

It is an amenable number.

20902000101 is a deficient number, since it is larger than the sum of its proper divisors (6982220379).

20902000101 is a wasteful number, since it uses less digits than its factorization.

20902000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3721755.

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

The spelling of 20902000101 in words is "twenty billion, nine hundred two million, one hundred one", and thus it is an aban number.