1115451212041 has 4 divisors (see below), whose sum is σ = 1115484021652. Its totient is φ = 1115418402432.

The previous prime is 1115451212033. The next prime is 1115451212093. The reversal of 1115451212041 is 1402121545111.

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 887448782025 + 228002430016 = 942045^2 + 477496^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115451212041 - 2³ = 1115451212033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115451212011) 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, 16353756 + ... + 16421821.

It is an arithmetic number, because the mean of its divisors is an integer number (278871005413).

Almost surely, 2^{1115451212041} is an apocalyptic number.

It is an amenable number.

1115451212041 is a deficient number, since it is larger than the sum of its proper divisors (32809611).

1115451212041 is an equidigital number, since it uses as much as digits as its factorization.

1115451212041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32809610.

The product of its (nonzero) digits is 1600, while the sum is 28.

Adding to 1115451212041 its reverse (1402121545111), we get a palindrome (2517572757152).

The spelling of 1115451212041 in words is "one trillion, one hundred fifteen billion, four hundred fifty-one million, two hundred twelve thousand, forty-one".