900021012231101 has 8 divisors (see below), whose sum is σ = 908981189009208. Its totient is φ = 891061797760000.

The previous prime is 900021012231097. The next prime is 900021012231157. The reversal of 900021012231101 is 101132210120009.

It can be written as a sum of positive squares in 4 ways, for example, as 692581804668601 + 207439207562500 = 26316949^2 + 14402750^2 .

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 900021012231101 - 2² = 900021012231097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900021012231181) 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, 238696820 + ... + 242438061.

It is an arithmetic number, because the mean of its divisors is an integer number (113622648626151).

Almost surely, 2^{900021012231101} is an apocalyptic number.

It is an amenable number.

900021012231101 is a deficient number, since it is larger than the sum of its proper divisors (8960176778107).

900021012231101 is a wasteful number, since it uses less digits than its factorization.

900021012231101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481153503.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 900021012231101 in words is "nine hundred trillion, twenty-one billion, twelve million, two hundred thirty-one thousand, one hundred one".