1353243123 has 12 divisors (see below), whose sum is σ = 1956823440. Its totient is φ = 901174896.

The previous prime is 1353243097. The next prime is 1353243161. The reversal of 1353243123 is 3213423531.

1353243123 is a `hidden beast` number, since 1 + 3 + 532 + 4 + 3 + 123 = 666.

1353243123 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1353243123 - 2⁵ = 1353243091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1353243193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73536 + ... + 90077.

It is an arithmetic number, because the mean of its divisors is an integer number (163068620).

Almost surely, 2^1353243123 is an apocalyptic number.

1353243123 is a deficient number, since it is larger than the sum of its proper divisors (603580317).

1353243123 is a wasteful number, since it uses less digits than its factorization.

1353243123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164538 (or 164535 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 1353243123 is about 36786.4529820422. The cubic root of 1353243123 is about 1106.0937616371.

Adding to 1353243123 its reverse (3213423531), we get a palindrome (4566666654).

The spelling of 1353243123 in words is "one billion, three hundred fifty-three million, two hundred forty-three thousand, one hundred twenty-three".