123240325980 has 96 divisors (see below), whose sum is σ = 365732962560. Its totient is φ = 30900290560.

The previous prime is 123240325979. The next prime is 123240325981. The reversal of 123240325980 is 89523042321.

It is an interprime number because it is at equal distance from previous prime (123240325979) and next prime (123240325981).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123240325981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 980095 + ... + 1098665.

It is an arithmetic number, because the mean of its divisors is an integer number (3809718360).

Almost surely, 2^123240325980 is an apocalyptic number.

123240325980 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 123240325980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182866481280).

123240325980 is an abundant number, since it is smaller than the sum of its proper divisors (242492636580).

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

123240325980 is a wasteful number, since it uses less digits than its factorization.

123240325980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119619 (or 119617 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 123240325980 in words is "one hundred twenty-three billion, two hundred forty million, three hundred twenty-five thousand, nine hundred eighty".