1115042212453 has 4 divisors (see below), whose sum is σ = 1200814690348. Its totient is φ = 1029269734560.

The previous prime is 1115042212441. The next prime is 1115042212517. The reversal of 1115042212453 is 3542122405111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 505466965444 + 609575247009 = 710962^2 + 780753^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115042212453 - 2²⁵ = 1115008658021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115042212153) 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, 42886238928 + ... + 42886238953.

It is an arithmetic number, because the mean of its divisors is an integer number (300203672587).

Almost surely, 2^{1115042212453} is an apocalyptic number.

1115042212453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1115042212453 is a deficient number, since it is larger than the sum of its proper divisors (85772477895).

1115042212453 is an equidigital number, since it uses as much as digits as its factorization.

1115042212453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85772477894.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 1115042212453 its reverse (3542122405111), we get a palindrome (4657164617564).

The spelling of 1115042212453 in words is "one trillion, one hundred fifteen billion, forty-two million, two hundred twelve thousand, four hundred fifty-three".