20023230132 has 42 divisors (see below), whose sum is σ = 52536953378. Its totient is φ = 6674409072.

The previous prime is 20023230121. The next prime is 20023230133. The reversal of 20023230132 is 23103232002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17560490256 + 2462739876 = 132516^2 + 49626^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023230133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3430423 + ... + 3436254.

Almost surely, 2^20023230132 is an apocalyptic number.

It is an amenable number.

20023230132 is an abundant number, since it is smaller than the sum of its proper divisors (32513723246).

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

20023230132 is an equidigital number, since it uses as much as digits as its factorization.

20023230132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6866699 (or 6866682 counting only the distinct ones).

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

Adding to 20023230132 its reverse (23103232002), we get a palindrome (43126462134).

The spelling of 20023230132 in words is "twenty billion, twenty-three million, two hundred thirty thousand, one hundred thirty-two".