901100020 has 24 divisors (see below), whose sum is σ = 1893675168. Its totient is φ = 360180000.

The previous prime is 901099987. The next prime is 901100029. The reversal of 901100020 is 20001109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901100029) 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, 13495 + ... + 44545.

It is an arithmetic number, because the mean of its divisors is an integer number (78903132).

Almost surely, 2^901100020 is an apocalyptic number.

It is an amenable number.

901100020 is an abundant number, since it is smaller than the sum of its proper divisors (992575148).

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

901100020 is a wasteful number, since it uses less digits than its factorization.

901100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32511 (or 32509 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 901100020 is about 30018.3280680320. The cubic root of 901100020 is about 965.8825791347.

Adding to 901100020 its reverse (20001109), we get a palindrome (921101129).

The spelling of 901100020 in words is "nine hundred one million, one hundred thousand, twenty".