31224045453 has 4 divisors (see below), whose sum is σ = 41632060608. Its totient is φ = 20816030300.

The previous prime is 31224045427. The next prime is 31224045473. The reversal of 31224045453 is 35454042213.

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 31224045453 - 2¹² = 31224041357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31224045473) 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, 5204007573 + ... + 5204007578.

It is an arithmetic number, because the mean of its divisors is an integer number (10408015152).

Almost surely, 2^31224045453 is an apocalyptic number.

It is an amenable number.

31224045453 is a deficient number, since it is larger than the sum of its proper divisors (10408015155).

31224045453 is a wasteful number, since it uses less digits than its factorization.

31224045453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10408015154.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 31224045453 its reverse (35454042213), we get a palindrome (66678087666).

The spelling of 31224045453 in words is "thirty-one billion, two hundred twenty-four million, forty-five thousand, four hundred fifty-three".