1231224253453 has 4 divisors (see below), whose sum is σ = 1239378056608. Its totient is φ = 1223070450300.

The previous prime is 1231224253451. The next prime is 1231224253471. The reversal of 1231224253453 is 3543524221321.

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 1231224253453 - 2¹ = 1231224253451 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 (1231224253451) 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, 4076901351 + ... + 4076901652.

It is an arithmetic number, because the mean of its divisors is an integer number (309844514152).

Almost surely, 2^{1231224253453} is an apocalyptic number.

It is an amenable number.

1231224253453 is a deficient number, since it is larger than the sum of its proper divisors (8153803155).

1231224253453 is an equidigital number, since it uses as much as digits as its factorization.

1231224253453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8153803154.

The product of its digits is 172800, while the sum is 37.

Adding to 1231224253453 its reverse (3543524221321), we get a palindrome (4774748474774).

The spelling of 1231224253453 in words is "one trillion, two hundred thirty-one billion, two hundred twenty-four million, two hundred fifty-three thousand, four hundred fifty-three".