19202001002011 has 4 divisors (see below), whose sum is σ = 19204168035024. Its totient is φ = 19199833969000.

The previous prime is 19202001001999. The next prime is 19202001002021. The reversal of 19202001002011 is 11020010020291.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19202001002011 - 2¹⁷ = 19202000870939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19202001002011.

It is not an unprimeable number, because it can be changed into a prime (19202001002021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083503215 + ... + 1083520936.

It is an arithmetic number, because the mean of its divisors is an integer number (4801042008756).

Almost surely, 2^{19202001002011} is an apocalyptic number.

19202001002011 is a deficient number, since it is larger than the sum of its proper divisors (2167033013).

19202001002011 is an equidigital number, since it uses as much as digits as its factorization.

19202001002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167033012.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 19202001002011 in words is "nineteen trillion, two hundred two billion, one million, two thousand, eleven".