1126231836991 has 16 divisors (see below), whose sum is σ = 1150408998144. Its totient is φ = 1102339647424.

The previous prime is 1126231836971. The next prime is 1126231837033. The reversal of 1126231836991 is 1996381326211.

It is a cyclic number.

It is not a de Polignac number, because 1126231836991 - 2¹⁷ = 1126231705919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1126231836901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5621160 + ... + 5818066.

It is an arithmetic number, because the mean of its divisors is an integer number (71900562384).

Almost surely, 2^{1126231836991} is an apocalyptic number.

1126231836991 is a deficient number, since it is larger than the sum of its proper divisors (24177161153).

1126231836991 is a wasteful number, since it uses less digits than its factorization.

1126231836991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197630.

The product of its digits is 839808, while the sum is 52.

The spelling of 1126231836991 in words is "one trillion, one hundred twenty-six billion, two hundred thirty-one million, eight hundred thirty-six thousand, nine hundred ninety-one".