19103021089 has 2 divisors, whose sum is σ = 19103021090. Its totient is φ = 19103021088.

The previous prime is 19103021081. The next prime is 19103021101. The reversal of 19103021089 is 98012030191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18972307600 + 130713489 = 137740^2 + 11433^2 .

It is a cyclic number.

It is not a de Polignac number, because 19103021089 - 2³ = 19103021081 is a prime.

It is not a weakly prime, because it can be changed into another prime (19103021081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9551510544 + 9551510545.

It is an arithmetic number, because the mean of its divisors is an integer number (9551510545).

Almost surely, 2^19103021089 is an apocalyptic number.

It is an amenable number.

19103021089 is a deficient number, since it is larger than the sum of its proper divisors (1).

19103021089 is an equidigital number, since it uses as much as digits as its factorization.

19103021089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 34.

The spelling of 19103021089 in words is "nineteen billion, one hundred three million, twenty-one thousand, eighty-nine".