1291034097111 has 32 divisors (see below), whose sum is σ = 1991825510400. Its totient is φ = 735124321280.

The previous prime is 1291034097011. The next prime is 1291034097229. The reversal of 1291034097111 is 1117904301921.

It is a cyclic number.

It is not a de Polignac number, because 1291034097111 - 2²⁵ = 1291000542679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1291034097111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1291034097011) 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 31 ways as a sum of consecutive naturals, for example, 1703031 + ... + 2341448.

It is an arithmetic number, because the mean of its divisors is an integer number (62244547200).

Almost surely, 2^{1291034097111} is an apocalyptic number.

1291034097111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1291034097111 is a deficient number, since it is larger than the sum of its proper divisors (700791413289).

1291034097111 is a wasteful number, since it uses less digits than its factorization.

1291034097111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045079.

The product of its (nonzero) digits is 13608, while the sum is 39.

The spelling of 1291034097111 in words is "one trillion, two hundred ninety-one billion, thirty-four million, ninety-seven thousand, one hundred eleven".