20023213032 has 48 divisors (see below), whose sum is σ = 54236064480. Its totient is φ = 6673600800.

The previous prime is 20023213019. The next prime is 20023213043. The reversal of 20023213032 is 23031232002.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 20023212996 and 20023213014.

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, 1090407 + ... + 1108617.

It is an arithmetic number, because the mean of its divisors is an integer number (1129918010).

Almost surely, 2^20023213032 is an apocalyptic number.

It is an amenable number.

20023213032 is an abundant number, since it is smaller than the sum of its proper divisors (34212851448).

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

20023213032 is a wasteful number, since it uses less digits than its factorization.

20023213032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33494 (or 33487 counting only the distinct ones).

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

Adding to 20023213032 its reverse (23031232002), we get a palindrome (43054445034).

The spelling of 20023213032 in words is "twenty billion, twenty-three million, two hundred thirteen thousand, thirty-two".