90113020110021 has 8 divisors (see below), whose sum is σ = 120295627974880. Its totient is φ = 60002879492592.

The previous prime is 90113020110017. The next prime is 90113020110083. The reversal of 90113020110021 is 12001102031109.

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 90113020110021 - 2² = 90113020110017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90113020110021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90113020110121) 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, 18116808955 + ... + 18116813928.

It is an arithmetic number, because the mean of its divisors is an integer number (15036953496860).

Almost surely, 2^{90113020110021} is an apocalyptic number.

It is an amenable number.

90113020110021 is a deficient number, since it is larger than the sum of its proper divisors (30182607864859).

90113020110021 is a wasteful number, since it uses less digits than its factorization.

90113020110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36233623715.

The product of its (nonzero) digits is 108, while the sum is 21.

The spelling of 90113020110021 in words is "ninety trillion, one hundred thirteen billion, twenty million, one hundred ten thousand, twenty-one".