20013230010128 has 20 divisors (see below), whose sum is σ = 38775761668608. Its totient is φ = 10006581837600.

The previous prime is 20013230010127. The next prime is 20013230010197. The reversal of 20013230010128 is 82101003231002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20013230010127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3332153 + ... + 7150503.

Almost surely, 2^{20013230010128} is an apocalyptic number.

It is an amenable number.

20013230010128 is a deficient number, since it is larger than the sum of its proper divisors (18762531658480).

20013230010128 is a wasteful number, since it uses less digits than its factorization.

20013230010128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4145942 (or 4145936 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 20013230010128 in words is "twenty trillion, thirteen billion, two hundred thirty million, ten thousand, one hundred twenty-eight".