21023230300197 has 16 divisors (see below), whose sum is σ = 28391388867840. Its totient is φ = 13835349208512.

The previous prime is 21023230300183. The next prime is 21023230300243. The reversal of 21023230300197 is 79100303232012.

It is not a de Polignac number, because 21023230300197 - 2⁸ = 21023230299941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21023230301197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7532778 + ... + 9939275.

It is an arithmetic number, because the mean of its divisors is an integer number (1774461804240).

Almost surely, 2^{21023230300197} is an apocalyptic number.

It is an amenable number.

21023230300197 is a deficient number, since it is larger than the sum of its proper divisors (7368158567643).

21023230300197 is a wasteful number, since it uses less digits than its factorization.

21023230300197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17477212.

The product of its (nonzero) digits is 13608, while the sum is 33.

The spelling of 21023230300197 in words is "twenty-one trillion, twenty-three billion, two hundred thirty million, three hundred thousand, one hundred ninety-seven".