123114051520 has 112 divisors (see below), whose sum is σ = 296953338528. Its totient is φ = 48613294080.

The previous prime is 123114051469. The next prime is 123114051547. The reversal of 123114051520 is 25150411321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8082952 + ... + 8098168.

It is an arithmetic number, because the mean of its divisors is an integer number (2651369094).

Almost surely, 2^123114051520 is an apocalyptic number.

123114051520 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 123114051520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148476669264).

123114051520 is an abundant number, since it is smaller than the sum of its proper divisors (173839287008).

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

123114051520 is a wasteful number, since it uses less digits than its factorization.

123114051520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15558 (or 15548 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 123114051520 its reverse (25150411321), we get a palindrome (148264462841).

The spelling of 123114051520 in words is "one hundred twenty-three billion, one hundred fourteen million, fifty-one thousand, five hundred twenty".