1129991912603 has 2 divisors, whose sum is σ = 1129991912604. Its totient is φ = 1129991912602.

The previous prime is 1129991912597. The next prime is 1129991912633. The reversal of 1129991912603 is 3062191999211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1129991912603 - 2³⁸ = 855114005659 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1129991912633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564995956301 + 564995956302.

It is an arithmetic number, because the mean of its divisors is an integer number (564995956302).

Almost surely, 2^{1129991912603} is an apocalyptic number.

1129991912603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129991912603 is an equidigital number, since it uses as much as digits as its factorization.

1129991912603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 472392, while the sum is 53.

The spelling of 1129991912603 in words is "one trillion, one hundred twenty-nine billion, nine hundred ninety-one million, nine hundred twelve thousand, six hundred three".