123433457620 has 36 divisors (see below), whose sum is σ = 284917069332. Its totient is φ = 44884892800.

The previous prime is 123433457597. The next prime is 123433457627. The reversal of 123433457620 is 26754334321.

It can be written as a sum of positive squares in 2 ways, for example, as 39789876676 + 83643580944 = 199474^2 + 289212^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123433457627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25500361 + ... + 25505200.

It is an arithmetic number, because the mean of its divisors is an integer number (7914363037).

Almost surely, 2^123433457620 is an apocalyptic number.

123433457620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123433457620 is an abundant number, since it is smaller than the sum of its proper divisors (161483611712).

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

123433457620 is a wasteful number, since it uses less digits than its factorization.

123433457620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51005592 (or 51005579 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 40.

The spelling of 123433457620 in words is "one hundred twenty-three billion, four hundred thirty-three million, four hundred fifty-seven thousand, six hundred twenty".