123435422056 has 64 divisors (see below), whose sum is σ = 246999513600. Its totient is φ = 57718096128.

The previous prime is 123435422053. The next prime is 123435422057. The reversal of 123435422056 is 650224534321.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (123435422053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1881991 + ... + 1946473.

It is an arithmetic number, because the mean of its divisors is an integer number (3859367400).

Almost surely, 2^123435422056 is an apocalyptic number.

It is an amenable number.

123435422056 is an abundant number, since it is smaller than the sum of its proper divisors (123564091544).

123435422056 is a wasteful number, since it uses less digits than its factorization.

123435422056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64778 (or 64774 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 123435422056 its reverse (650224534321), we get a palindrome (773659956377).

The spelling of 123435422056 in words is "one hundred twenty-three billion, four hundred thirty-five million, four hundred twenty-two thousand, fifty-six".