19020203422811 has 2 divisors, whose sum is σ = 19020203422812. Its totient is φ = 19020203422810.

The previous prime is 19020203422799. The next prime is 19020203422819. The reversal of 19020203422811 is 11822430202091.

It is a strong prime.

It is an emirp because it is prime and its reverse (11822430202091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19020203422811 - 2²⁶ = 19020136313947 is a prime.

It is a super-2 number, since 2×19020203422811² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19020203422819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9510101711405 + 9510101711406.

It is an arithmetic number, because the mean of its divisors is an integer number (9510101711406).

Almost surely, 2^{19020203422811} is an apocalyptic number.

19020203422811 is a deficient number, since it is larger than the sum of its proper divisors (1).

19020203422811 is an equidigital number, since it uses as much as digits as its factorization.

19020203422811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 19020203422811 in words is "nineteen trillion, twenty billion, two hundred three million, four hundred twenty-two thousand, eight hundred eleven".