123433002020 has 24 divisors (see below), whose sum is σ = 263602684800. Its totient is φ = 48536366432.

The previous prime is 123433002013. The next prime is 123433002023. The reversal of 123433002020 is 20200334321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 123433001983 and 123433002001.

It is not an unprimeable number, because it can be changed into a prime (123433002023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52300940 + ... + 52303299.

It is an arithmetic number, because the mean of its divisors is an integer number (10983445200).

Almost surely, 2^123433002020 is an apocalyptic number.

123433002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123433002020 is an abundant number, since it is smaller than the sum of its proper divisors (140169682780).

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

123433002020 is a wasteful number, since it uses less digits than its factorization.

123433002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104604307 (or 104604305 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 123433002020 its reverse (20200334321), we get a palindrome (143633336341).

The spelling of 123433002020 in words is "one hundred twenty-three billion, four hundred thirty-three million, two thousand, twenty".