1232123020 has 24 divisors (see below), whose sum is σ = 2723641200. Its totient is φ = 466909632.

The previous prime is 1232122973. The next prime is 1232123023. The reversal of 1232123020 is 203212321.

It is a junction number, because it is equal to n+sod(n) for n = 1232122985 and 1232123003.

It is not an unprimeable number, because it can be changed into a prime (1232123023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1620835 + ... + 1621594.

It is an arithmetic number, because the mean of its divisors is an integer number (113485050).

Almost surely, 2^1232123020 is an apocalyptic number.

1232123020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232123020 is an abundant number, since it is smaller than the sum of its proper divisors (1491518180).

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

1232123020 is a wasteful number, since it uses less digits than its factorization.

1232123020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242457 (or 3242455 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1232123020 is about 35101.6099345885. The cubic root of 1232123020 is about 1072.0573628527.

Adding to 1232123020 its reverse (203212321), we get a palindrome (1435335341).

The spelling of 1232123020 in words is "one billion, two hundred thirty-two million, one hundred twenty-three thousand, twenty".