1345656542011 has 4 divisors (see below), whose sum is σ = 1345831333000. Its totient is φ = 1345481751024.

The previous prime is 1345656541997. The next prime is 1345656542017. The reversal of 1345656542011 is 1102456565431.

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 1345656542011 - 2⁷ = 1345656541883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345656542017) 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, 87383946 + ... + 87399343.

It is an arithmetic number, because the mean of its divisors is an integer number (336457833250).

Almost surely, 2^{1345656542011} is an apocalyptic number.

1345656542011 is a deficient number, since it is larger than the sum of its proper divisors (174790989).

1345656542011 is an equidigital number, since it uses as much as digits as its factorization.

1345656542011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174790988.

The product of its (nonzero) digits is 432000, while the sum is 43.

It can be divided in two parts, 13456565420 and 11, that added together give a palindrome (13456565431).

The spelling of 1345656542011 in words is "one trillion, three hundred forty-five billion, six hundred fifty-six million, five hundred forty-two thousand, eleven".