20313021099 has 96 divisors (see below), whose sum is σ = 33053057856. Its totient is φ = 11054776320.

The previous prime is 20313021083. The next prime is 20313021101. The reversal of 20313021099 is 99012031302.

It is a happy number.

It is not a de Polignac number, because 20313021099 - 2⁴ = 20313021083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20313021299) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 60275859 + ... + 60276195.

It is an arithmetic number, because the mean of its divisors is an integer number (344302686).

Almost surely, 2^20313021099 is an apocalyptic number.

20313021099 is a deficient number, since it is larger than the sum of its proper divisors (12740036757).

20313021099 is a wasteful number, since it uses less digits than its factorization.

20313021099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The spelling of 20313021099 in words is "twenty billion, three hundred thirteen million, twenty-one thousand, ninety-nine".