123002400103 has 4 divisors (see below), whose sum is σ = 134184436488. Its totient is φ = 111820363720.

The previous prime is 123002400091. The next prime is 123002400113. The reversal of 123002400103 is 301004200321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123002400103 - 2¹⁷ = 123002269031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123002400113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5591018176 + ... + 5591018197.

It is an arithmetic number, because the mean of its divisors is an integer number (33546109122).

Almost surely, 2^123002400103 is an apocalyptic number.

123002400103 is a deficient number, since it is larger than the sum of its proper divisors (11182036385).

123002400103 is a wasteful number, since it uses less digits than its factorization.

123002400103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11182036384.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 123002400103 its reverse (301004200321), we get a palindrome (424006600424).

The spelling of 123002400103 in words is "one hundred twenty-three billion, two million, four hundred thousand, one hundred three".