19311349229 has 2 divisors, whose sum is σ = 19311349230. Its totient is φ = 19311349228.

The previous prime is 19311349207. The next prime is 19311349301. The reversal of 19311349229 is 92294311391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17688468004 + 1622881225 = 132998^2 + 40285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19311349229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19311349229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19311342229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9655674614 + 9655674615.

It is an arithmetic number, because the mean of its divisors is an integer number (9655674615).

Almost surely, 2^19311349229 is an apocalyptic number.

It is an amenable number.

19311349229 is a deficient number, since it is larger than the sum of its proper divisors (1).

19311349229 is an equidigital number, since it uses as much as digits as its factorization.

19311349229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 44.

The spelling of 19311349229 in words is "nineteen billion, three hundred eleven million, three hundred forty-nine thousand, two hundred twenty-nine".