20012120323 has 8 divisors (see below), whose sum is σ = 21552804000. Its totient is φ = 18471620928.

The previous prime is 20012120269. The next prime is 20012120351. The reversal of 20012120323 is 32302121002.

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 20012120323 - 2²⁵ = 19978565891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20012120297 and 20012120306.

It is not an unprimeable number, because it can be changed into a prime (20012120353) 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, 249978 + ... + 320176.

It is an arithmetic number, because the mean of its divisors is an integer number (2694100500).

Almost surely, 2^20012120323 is an apocalyptic number.

20012120323 is a deficient number, since it is larger than the sum of its proper divisors (1540683677).

20012120323 is a wasteful number, since it uses less digits than its factorization.

20012120323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92141.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20012120323 its reverse (32302121002), we get a palindrome (52314241325).

The spelling of 20012120323 in words is "twenty billion, twelve million, one hundred twenty thousand, three hundred twenty-three".