20012010129 has 12 divisors (see below), whose sum is σ = 30427618000. Its totient is φ = 12639164184.

The previous prime is 20012010119. The next prime is 20012010163. The reversal of 20012010129 is 92101021002.

It is not a de Polignac number, because 20012010129 - 2⁴ = 20012010113 is a prime.

It is a super-3 number, since 3×20012010129³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20012010119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58514479 + ... + 58514820.

Almost surely, 2^20012010129 is an apocalyptic number.

It is an amenable number.

20012010129 is a deficient number, since it is larger than the sum of its proper divisors (10415607871).

20012010129 is a wasteful number, since it uses less digits than its factorization.

20012010129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117029324 (or 117029321 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 20012010129 in words is "twenty billion, twelve million, ten thousand, one hundred twenty-nine".