20233023012 has 72 divisors (see below), whose sum is σ = 54046356000. Its totient is φ = 6364459008.

The previous prime is 20233022989. The next prime is 20233023029. The reversal of 20233023012 is 21032033202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118239 + ... + 233337.

Almost surely, 2^20233023012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20233023012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27023178000).

20233023012 is an abundant number, since it is smaller than the sum of its proper divisors (33813332988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20233023012 is a wasteful number, since it uses less digits than its factorization.

20233023012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115385 (or 115380 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20233023012 its reverse (21032033202), we get a palindrome (41265056214).

The spelling of 20233023012 in words is "twenty billion, two hundred thirty-three million, twenty-three thousand, twelve".