123311653 has 8 divisors (see below), whose sum is σ = 131446400. Its totient is φ = 115341408.

The previous prime is 123311651. The next prime is 123311663. The reversal of 123311653 is 356113321.

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 123311653 - 2¹ = 123311651 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 (123311651) 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, 39576 + ... + 42577.

It is an arithmetic number, because the mean of its divisors is an integer number (16430800).

Almost surely, 2^123311653 is an apocalyptic number.

It is an amenable number.

123311653 is a deficient number, since it is larger than the sum of its proper divisors (8134747).

123311653 is an equidigital number, since it uses as much as digits as its factorization.

123311653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82251.

The product of its digits is 1620, while the sum is 25.

The square root of 123311653 is about 11104.5780198979. The cubic root of 123311653 is about 497.7386587565.

Adding to 123311653 its reverse (356113321), we get a palindrome (479424974).

The spelling of 123311653 in words is "one hundred twenty-three million, three hundred eleven thousand, six hundred fifty-three".