123450253305 has 16 divisors (see below), whose sum is σ = 198390544704. Its totient is φ = 65550088640.

The previous prime is 123450253249. The next prime is 123450253313. The reversal of 123450253305 is 503352054321.

It is not a de Polignac number, because 123450253305 - 2⁷ = 123450253177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18124386 + ... + 18131195.

It is an arithmetic number, because the mean of its divisors is an integer number (12399409044).

Almost surely, 2^123450253305 is an apocalyptic number.

123450253305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123450253305 is a deficient number, since it is larger than the sum of its proper divisors (74940291399).

123450253305 is a wasteful number, since it uses less digits than its factorization.

123450253305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36255816.

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 123450253305 in words is "one hundred twenty-three billion, four hundred fifty million, two hundred fifty-three thousand, three hundred five".