20332420312 has 32 divisors (see below), whose sum is σ = 39082340880. Its totient is φ = 9911341440.

The previous prime is 20332420309. The next prime is 20332420321. The reversal of 20332420312 is 21302423302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131478 + ... + 240730.

Almost surely, 2^20332420312 is an apocalyptic number.

It is an amenable number.

20332420312 is a deficient number, since it is larger than the sum of its proper divisors (18749920568).

20332420312 is a wasteful number, since it uses less digits than its factorization.

20332420312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109843 (or 109839 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20332420312 its reverse (21302423302), we get a palindrome (41634843614).

The spelling of 20332420312 in words is "twenty billion, three hundred thirty-two million, four hundred twenty thousand, three hundred twelve".