11451223453 has 16 divisors (see below), whose sum is σ = 11826307584. Its totient is φ = 11080967040.

The previous prime is 11451223451. The next prime is 11451223457. The reversal of 11451223453 is 35432215411.

It is a cyclic number.

It is not a de Polignac number, because 11451223453 - 2¹ = 11451223451 is a prime.

It is a super-2 number, since 2×11451223453² (a number of 21 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 (11451223451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4678476 + ... + 4680922.

It is an arithmetic number, because the mean of its divisors is an integer number (739144224).

Almost surely, 2^11451223453 is an apocalyptic number.

It is an amenable number.

11451223453 is a deficient number, since it is larger than the sum of its proper divisors (375084131).

11451223453 is a wasteful number, since it uses less digits than its factorization.

11451223453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372.

The product of its digits is 14400, while the sum is 31.

Adding to 11451223453 its reverse (35432215411), we get a palindrome (46883438864).

The spelling of 11451223453 in words is "eleven billion, four hundred fifty-one million, two hundred twenty-three thousand, four hundred fifty-three".