20012333009 has 8 divisors (see below), whose sum is σ = 20271874560. Its totient is φ = 19752947136.

The previous prime is 20012332981. The next prime is 20012333039. The reversal of 20012333009 is 90033321002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20012333009 - 2²⁸ = 19743897553 is a prime.

It is a super-2 number, since 2×20012333009² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012333039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231977 + ... + 306329.

It is an arithmetic number, because the mean of its divisors is an integer number (2533984320).

Almost surely, 2^20012333009 is an apocalyptic number.

It is an amenable number.

20012333009 is a deficient number, since it is larger than the sum of its proper divisors (259541551).

20012333009 is an equidigital number, since it uses as much as digits as its factorization.

20012333009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77839.

The product of its (nonzero) digits is 972, while the sum is 23.

The spelling of 20012333009 in words is "twenty billion, twelve million, three hundred thirty-three thousand, nine".