123731353 has 4 divisors (see below), whose sum is σ = 123889360. Its totient is φ = 123573348.

The previous prime is 123731351. The next prime is 123731359. The reversal of 123731353 is 353137321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123731353 - 2¹ = 123731351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123731351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77823 + ... + 79396.

It is an arithmetic number, because the mean of its divisors is an integer number (30972340).

Almost surely, 2^123731353 is an apocalyptic number.

It is an amenable number.

123731353 is a deficient number, since it is larger than the sum of its proper divisors (158007).

123731353 is an equidigital number, since it uses as much as digits as its factorization.

123731353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158006.

The product of its digits is 5670, while the sum is 28.

The square root of 123731353 is about 11123.4595787462. The cubic root of 123731353 is about 498.3027156376.

Adding to 123731353 its reverse (353137321), we get a palindrome (476868674).

The spelling of 123731353 in words is "one hundred twenty-three million, seven hundred thirty-one thousand, three hundred fifty-three".