123453519103 has 4 divisors (see below), whose sum is σ = 129951072760. Its totient is φ = 116955965448.

The previous prime is 123453519097. The next prime is 123453519109. The reversal of 123453519103 is 301915354321.

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

It is an interprime number because it is at equal distance from previous prime (123453519097) and next prime (123453519109).

It is a cyclic number.

It is not a de Polignac number, because 123453519103 - 2¹⁷ = 123453388031 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 (123453519109) 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, 3248776800 + ... + 3248776837.

It is an arithmetic number, because the mean of its divisors is an integer number (32487768190).

Almost surely, 2^123453519103 is an apocalyptic number.

123453519103 is a deficient number, since it is larger than the sum of its proper divisors (6497553657).

123453519103 is an equidigital number, since it uses as much as digits as its factorization.

123453519103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6497553656.

The product of its (nonzero) digits is 48600, while the sum is 37.

The spelling of 123453519103 in words is "one hundred twenty-three billion, four hundred fifty-three million, five hundred nineteen thousand, one hundred three".