123811253 has 8 divisors (see below), whose sum is σ = 125361600. Its totient is φ = 122267808.

The previous prime is 123811229. The next prime is 123811271. The reversal of 123811253 is 352118321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123811253 - 2²² = 119616949 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 (123811223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40658 + ... + 43596.

It is an arithmetic number, because the mean of its divisors is an integer number (15670200).

Almost surely, 2^123811253 is an apocalyptic number.

It is an amenable number.

123811253 is a deficient number, since it is larger than the sum of its proper divisors (1550347).

123811253 is a wasteful number, since it uses less digits than its factorization.

123811253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451.

The product of its digits is 1440, while the sum is 26.

The square root of 123811253 is about 11127.0505076593. The cubic root of 123811253 is about 498.4099528602.

Adding to 123811253 its reverse (352118321), we get a palindrome (475929574).

The spelling of 123811253 in words is "one hundred twenty-three million, eight hundred eleven thousand, two hundred fifty-three".