123703642803 has 16 divisors (see below), whose sum is σ = 177654032640. Its totient is φ = 76113194784.

The previous prime is 123703642801. The next prime is 123703642813. The reversal of 123703642803 is 308246307321.

It is not a de Polignac number, because 123703642803 - 2¹ = 123703642801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (123703642801) 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, 1401 + ... + 497402.

It is an arithmetic number, because the mean of its divisors is an integer number (11103377040).

Almost surely, 2^123703642803 is an apocalyptic number.

123703642803 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123703642803 is a deficient number, since it is larger than the sum of its proper divisors (53950389837).

123703642803 is a wasteful number, since it uses less digits than its factorization.

123703642803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505178.

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 123703642803 in words is "one hundred twenty-three billion, seven hundred three million, six hundred forty-two thousand, eight hundred three".