20123243032 has 16 divisors (see below), whose sum is σ = 38948212800. Its totient is φ = 9737052960.

The previous prime is 20123243003. The next prime is 20123243059. The reversal of 20123243032 is 23034232102.

It is a junction number, because it is equal to n+sod(n) for n = 20123242994 and 20123243012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40570807 + ... + 40571302.

It is an arithmetic number, because the mean of its divisors is an integer number (2434263300).

Almost surely, 2^20123243032 is an apocalyptic number.

It is an amenable number.

20123243032 is a deficient number, since it is larger than the sum of its proper divisors (18824969768).

20123243032 is a wasteful number, since it uses less digits than its factorization.

20123243032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81142146 (or 81142142 counting only the distinct ones).

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

Adding to 20123243032 its reverse (23034232102), we get a palindrome (43157475134).

The spelling of 20123243032 in words is "twenty billion, one hundred twenty-three million, two hundred forty-three thousand, thirty-two".