20123232232 has 8 divisors (see below), whose sum is σ = 37731060450. Its totient is φ = 10061616112.

The previous prime is 20123232229. The next prime is 20123232257. The reversal of 20123232232 is 23223232102.

It can be written as a sum of positive squares in only one way, i.e., 17936173476 + 2187058756 = 133926^2 + 46766^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257702007 + ... + 1257702022.

Almost surely, 2^20123232232 is an apocalyptic number.

It is an amenable number.

20123232232 is a deficient number, since it is larger than the sum of its proper divisors (17607828218).

20123232232 is a wasteful number, since it uses less digits than its factorization.

20123232232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515404035 (or 2515404031 counting only the distinct ones).

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

Adding to 20123232232 its reverse (23223232102), we get a palindrome (43346464334).

The spelling of 20123232232 in words is "twenty billion, one hundred twenty-three million, two hundred thirty-two thousand, two hundred thirty-two".