1243291767211 has 12 divisors (see below), whose sum is σ = 1350353742600. Its totient is φ = 1144186655040.

The previous prime is 1243291767199. The next prime is 1243291767217. The reversal of 1243291767211 is 1127671923421.

It is not a de Polignac number, because 1243291767211 - 2¹³ = 1243291759019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243291767217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11056986 + ... + 11168863.

It is an arithmetic number, because the mean of its divisors is an integer number (112529478550).

Almost surely, 2^{1243291767211} is an apocalyptic number.

1243291767211 is a deficient number, since it is larger than the sum of its proper divisors (107061975389).

1243291767211 is a wasteful number, since it uses less digits than its factorization.

1243291767211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22226206 (or 22226193 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The spelling of 1243291767211 in words is "one trillion, two hundred forty-three billion, two hundred ninety-one million, seven hundred sixty-seven thousand, two hundred eleven".