123103045402450 has 48 divisors (see below), whose sum is σ = 231340429593000. Its totient is φ = 48731842437120.

The previous prime is 123103045402439. The next prime is 123103045402471. The reversal of 123103045402450 is 54204540301321.

It can be written as a sum of positive squares in 12 ways, for example, as 24407384186689 + 98695661215761 = 4940383^2 + 9934569^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140372926 + ... + 141247174.

Almost surely, 2^{123103045402450} is an apocalyptic number.

123103045402450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123103045402450 is a deficient number, since it is larger than the sum of its proper divisors (108237384190550).

123103045402450 is a wasteful number, since it uses less digits than its factorization.

123103045402450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903391 (or 903386 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 123103045402450 its reverse (54204540301321), we get a palindrome (177307585703771).

The spelling of 123103045402450 in words is "one hundred twenty-three trillion, one hundred three billion, forty-five million, four hundred two thousand, four hundred fifty".