12023432020 has 24 divisors (see below), whose sum is σ = 25321986144. Its totient is φ = 4795510176.

The previous prime is 12023431993. The next prime is 12023432027. The reversal of 12023432020 is 2023432021.

It is a super-2 number, since 2×12023432020² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023432027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859302 + ... + 873181.

It is an arithmetic number, because the mean of its divisors is an integer number (1055082756).

Almost surely, 2^12023432020 is an apocalyptic number.

12023432020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12023432020 is an abundant number, since it is smaller than the sum of its proper divisors (13298554124).

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

12023432020 is a wasteful number, since it uses less digits than its factorization.

12023432020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732839 (or 1732837 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 12023432020 its reverse (2023432021), we get a palindrome (14046864041).

Subtracting from 12023432020 its reverse (2023432021), we obtain a palindrome (9999999999).

The spelling of 12023432020 in words is "twelve billion, twenty-three million, four hundred thirty-two thousand, twenty".