20023303212 has 36 divisors (see below), whose sum is σ = 55215776616. Its totient is φ = 6067667520.

The previous prime is 20023303193. The next prime is 20023303231. The reversal of 20023303212 is 21230332002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20023303193) and next prime (20023303231).

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 25281553 + ... + 25282344.

Almost surely, 2^20023303212 is an apocalyptic number.

20023303212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20023303212 is an abundant number, since it is smaller than the sum of its proper divisors (35192473404).

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

20023303212 is a wasteful number, since it uses less digits than its factorization.

20023303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50563918 (or 50563913 counting only the distinct ones).

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

Adding to 20023303212 its reverse (21230332002), we get a palindrome (41253635214).

The spelling of 20023303212 in words is "twenty billion, twenty-three million, three hundred three thousand, two hundred twelve".