2011899803 has 2 divisors, whose sum is σ = 2011899804. Its totient is φ = 2011899802.

The previous prime is 2011899763. The next prime is 2011899817. The reversal of 2011899803 is 3089981102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2011899803 - 2²² = 2007705499 is a prime.

It is a super-2 number, since 2×2011899803² = 8095481634622877618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2011899863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005949901 + 1005949902.

It is an arithmetic number, because the mean of its divisors is an integer number (1005949902).

Almost surely, 2^2011899803 is an apocalyptic number.

2011899803 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011899803 is an equidigital number, since it uses as much as digits as its factorization.

2011899803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 2011899803 is about 44854.2060792519. The cubic root of 2011899803 is about 1262.4149123847.

The spelling of 2011899803 in words is "two billion, eleven million, eight hundred ninety-nine thousand, eight hundred three".