1219040803 has 2 divisors, whose sum is σ = 1219040804. Its totient is φ = 1219040802.

The previous prime is 1219040791. The next prime is 1219040861. The reversal of 1219040803 is 3080409121.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3080409121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1219040803 - 2¹³ = 1219032611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1219047803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609520401 + 609520402.

It is an arithmetic number, because the mean of its divisors is an integer number (609520402).

Almost surely, 2^1219040803 is an apocalyptic number.

1219040803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1219040803 is an equidigital number, since it uses as much as digits as its factorization.

1219040803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1219040803 is about 34914.7648280781. The cubic root of 1219040803 is about 1068.2496210674.

Adding to 1219040803 its reverse (3080409121), we get a palindrome (4299449924).

The spelling of 1219040803 in words is "one billion, two hundred nineteen million, forty thousand, eight hundred three".