1500123120 has 40 divisors (see below), whose sum is σ = 4650382416. Its totient is φ = 400032768.

The previous prime is 1500123109. The next prime is 1500123133. The reversal of 1500123120 is 213210051.

1500123120 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1500123120.

It is a congruent number.

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, 3125017 + ... + 3125496.

Almost surely, 2^1500123120 is an apocalyptic number.

1500123120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1500123120 is an abundant number, since it is smaller than the sum of its proper divisors (3150259296).

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

1500123120 is a wasteful number, since it uses less digits than its factorization.

1500123120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6250529 (or 6250523 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1500123120 is about 38731.4229018248. The cubic root of 1500123120 is about 1144.7455610781.

Adding to 1500123120 its reverse (213210051), we get a palindrome (1713333171).

The spelling of 1500123120 in words is "one billion, five hundred million, one hundred twenty-three thousand, one hundred twenty".