420123535325430 has 128 divisors (see below), whose sum is σ = 1092501415577088. Its totient is φ = 102984457992192.

The previous prime is 420123535325407. The next prime is 420123535325437. The reversal of 420123535325430 is 34523535321024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420123535325437) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 371961024 + ... + 373088796.

It is an arithmetic number, because the mean of its divisors is an integer number (8535167309196).

Almost surely, 2^{420123535325430} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420123535325430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546250707788544).

420123535325430 is an abundant number, since it is smaller than the sum of its proper divisors (672377880251658).

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

420123535325430 is a wasteful number, since it uses less digits than its factorization.

420123535325430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144830.

The product of its (nonzero) digits is 1296000, while the sum is 42.

The spelling of 420123535325430 in words is "four hundred twenty trillion, one hundred twenty-three billion, five hundred thirty-five million, three hundred twenty-five thousand, four hundred thirty".