123341551520 has 48 divisors (see below), whose sum is σ = 317884821408. Its totient is φ = 44851472640.

The previous prime is 123341551499. The next prime is 123341551547. The reversal of 123341551520 is 25155143321.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35038454 + ... + 35041973.

It is an arithmetic number, because the mean of its divisors is an integer number (6622600446).

Almost surely, 2^123341551520 is an apocalyptic number.

123341551520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123341551520 is an abundant number, since it is smaller than the sum of its proper divisors (194543269888).

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

123341551520 is a wasteful number, since it uses less digits than its factorization.

123341551520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70080453 (or 70080445 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 123341551520 its reverse (25155143321), we get a palindrome (148496694841).

The spelling of 123341551520 in words is "one hundred twenty-three billion, three hundred forty-one million, five hundred fifty-one thousand, five hundred twenty".