2123403000500 has 48 divisors (see below), whose sum is σ = 4647443097024. Its totient is φ = 847542346400.

The previous prime is 2123403000487. The next prime is 2123403000503. The reversal of 2123403000500 is 50003043212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123403000503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4313402 + ... + 4780401.

It is an arithmetic number, because the mean of its divisors is an integer number (96821731188).

Almost surely, 2^{2123403000500} is an apocalyptic number.

2123403000500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123403000500 is an abundant number, since it is smaller than the sum of its proper divisors (2524040096524).

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

2123403000500 is a wasteful number, since it uses less digits than its factorization.

2123403000500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9094289 (or 9094277 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 2123403000500 its reverse (50003043212), we get a palindrome (2173406043712).

The spelling of 2123403000500 in words is "two trillion, one hundred twenty-three billion, four hundred three million, five hundred", and thus it is an aban number.