1113912001 has 2 divisors, whose sum is σ = 1113912002. Its totient is φ = 1113912000.

The previous prime is 1113911999. The next prime is 1113912083. The reversal of 1113912001 is 1002193111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1019141776 + 94770225 = 31924^2 + 9735^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113912001 - 2¹ = 1113911999 is a prime.

Together with 1113911999, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1113912001.

It is not a weakly prime, because it can be changed into another prime (1113910001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556956000 + 556956001.

It is an arithmetic number, because the mean of its divisors is an integer number (556956001).

Almost surely, 2^1113912001 is an apocalyptic number.

It is an amenable number.

1113912001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113912001 is an equidigital number, since it uses as much as digits as its factorization.

1113912001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 1113912001 is about 33375.3202381640. The cubic root of 1113912001 is about 1036.6137399988.

The spelling of 1113912001 in words is "one billion, one hundred thirteen million, nine hundred twelve thousand, one".