123313255501420 has 192 divisors, whose sum is σ = 284346749998080. Its totient is φ = 44756501916672.

The previous prime is 123313255501409. The next prime is 123313255501459. The reversal of 123313255501420 is 24105552313321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 123313255501420.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1599500394 + ... + 1599577486.

It is an arithmetic number, because the mean of its divisors is an integer number (1480972656240).

Almost surely, 2^{123313255501420} is an apocalyptic number.

123313255501420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123313255501420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142173374999040).

123313255501420 is an abundant number, since it is smaller than the sum of its proper divisors (161033494496660).

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

123313255501420 is a wasteful number, since it uses less digits than its factorization.

123313255501420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79064 (or 79062 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 123313255501420 in words is "one hundred twenty-three trillion, three hundred thirteen billion, two hundred fifty-five million, five hundred one thousand, four hundred twenty".