1321202119 has 2 divisors, whose sum is σ = 1321202120. Its totient is φ = 1321202118.

The previous prime is 1321202093. The next prime is 1321202123. The reversal of 1321202119 is 9112021231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1321202119 - 2²¹ = 1319104967 is a prime.

It is a super-2 number, since 2×1321202119² = 3491150078500180322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1321202119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321212119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660601059 + 660601060.

It is an arithmetic number, because the mean of its divisors is an integer number (660601060).

Almost surely, 2^1321202119 is an apocalyptic number.

1321202119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321202119 is an equidigital number, since it uses as much as digits as its factorization.

1321202119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1321202119 is about 36348.3441025860. The cubic root of 1321202119 is about 1097.2942089539.

The spelling of 1321202119 in words is "one billion, three hundred twenty-one million, two hundred two thousand, one hundred nineteen".