1202023399 has 2 divisors, whose sum is σ = 1202023400. Its totient is φ = 1202023398.

The previous prime is 1202023393. The next prime is 1202023423. The reversal of 1202023399 is 9933202021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1202023399 - 2⁷ = 1202023271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1202023399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202023393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601011699 + 601011700.

It is an arithmetic number, because the mean of its divisors is an integer number (601011700).

Almost surely, 2^1202023399 is an apocalyptic number.

1202023399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202023399 is an equidigital number, since it uses as much as digits as its factorization.

1202023399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 1202023399 is about 34670.2090994560. The cubic root of 1202023399 is about 1063.2555066537.

The spelling of 1202023399 in words is "one billion, two hundred two million, twenty-three thousand, three hundred ninety-nine".