20010910129 has 24 divisors (see below), whose sum is σ = 23926721280. Its totient is φ = 16677801504.

The previous prime is 20010910111. The next prime is 20010910151. The reversal of 20010910129 is 92101901002.

It is not a de Polignac number, because 20010910129 - 2⁵ = 20010910097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20010910189) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 448567 + ... + 491155.

It is an arithmetic number, because the mean of its divisors is an integer number (996946720).

Almost surely, 2^20010910129 is an apocalyptic number.

It is an amenable number.

20010910129 is a deficient number, since it is larger than the sum of its proper divisors (3915811151).

20010910129 is a wasteful number, since it uses less digits than its factorization.

20010910129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42869 (or 42862 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 20010910129 in words is "twenty billion, ten million, nine hundred ten thousand, one hundred twenty-nine".