20323293912 has 48 divisors (see below), whose sum is σ = 57939219000. Its totient is φ = 6417881856.

The previous prime is 20323293911. The next prime is 20323293953. The reversal of 20323293912 is 21939232302.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323293911) 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, 7426737 + ... + 7429472.

Almost surely, 2^20323293912 is an apocalyptic number.

It is an amenable number.

20323293912 is an abundant number, since it is smaller than the sum of its proper divisors (37615925088).

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

20323293912 is a wasteful number, since it uses less digits than its factorization.

20323293912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14856240 (or 14856233 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The spelling of 20323293912 in words is "twenty billion, three hundred twenty-three million, two hundred ninety-three thousand, nine hundred twelve".