1245541335011 has 4 divisors (see below), whose sum is σ = 1245568488000. Its totient is φ = 1245514182024.

The previous prime is 1245541335007. The next prime is 1245541335023. The reversal of 1245541335011 is 1105331455421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1245541335011 - 2² = 1245541335007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1245541335911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13507571 + ... + 13599468.

It is an arithmetic number, because the mean of its divisors is an integer number (311392122000).

Almost surely, 2^{1245541335011} is an apocalyptic number.

1245541335011 is a deficient number, since it is larger than the sum of its proper divisors (27152989).

1245541335011 is an equidigital number, since it uses as much as digits as its factorization.

1245541335011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27152988.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 1245541335011 in words is "one trillion, two hundred forty-five billion, five hundred forty-one million, three hundred thirty-five thousand, eleven".