123131311453 has 8 divisors (see below), whose sum is σ = 126000340928. Its totient is φ = 120262532544.

The previous prime is 123131311393. The next prime is 123131311469. The reversal of 123131311453 is 354113131321.

It is a happy number.

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 123131311453 - 2²¹ = 123129214301 is a prime.

It is a super-2 number, since 2×123131311453² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123131311483) 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, 1246600 + ... + 1341742.

It is an arithmetic number, because the mean of its divisors is an integer number (15750042616).

Almost surely, 2^123131311453 is an apocalyptic number.

It is an amenable number.

123131311453 is a deficient number, since it is larger than the sum of its proper divisors (2869029475).

123131311453 is an equidigital number, since it uses as much as digits as its factorization.

123131311453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125283.

The product of its digits is 3240, while the sum is 28.

Adding to 123131311453 its reverse (354113131321), we get a palindrome (477244442774).

The spelling of 123131311453 in words is "one hundred twenty-three billion, one hundred thirty-one million, three hundred eleven thousand, four hundred fifty-three".