123433020420 has 24 divisors (see below), whose sum is σ = 345612457344. Its totient is φ = 32915472096.

The previous prime is 123433020397. The next prime is 123433020433. The reversal of 123433020420 is 24020334321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1028608444 + ... + 1028608563.

It is an arithmetic number, because the mean of its divisors is an integer number (14400519056).

Almost surely, 2^123433020420 is an apocalyptic number.

123433020420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123433020420 is an abundant number, since it is smaller than the sum of its proper divisors (222179436924).

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

123433020420 is a wasteful number, since it uses less digits than its factorization.

123433020420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057217019 (or 2057217017 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 123433020420 its reverse (24020334321), we get a palindrome (147453354741).

The spelling of 123433020420 in words is "one hundred twenty-three billion, four hundred thirty-three million, twenty thousand, four hundred twenty".