1223203399 has 12 divisors (see below), whose sum is σ = 1367309160. Its totient is φ = 1093149200.

The previous prime is 1223203393. The next prime is 1223203409. The reversal of 1223203399 is 9933023221.

It is not a de Polignac number, because 1223203399 - 2¹¹ = 1223201351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223203393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78532 + ... + 92809.

It is an arithmetic number, because the mean of its divisors is an integer number (113942430).

Almost surely, 2^1223203399 is an apocalyptic number.

1223203399 is a deficient number, since it is larger than the sum of its proper divisors (144105761).

1223203399 is a wasteful number, since it uses less digits than its factorization.

1223203399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171422 (or 171411 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 1223203399 is about 34974.3248540983. The cubic root of 1223203399 is about 1069.4641387635.

The spelling of 1223203399 in words is "one billion, two hundred twenty-three million, two hundred three thousand, three hundred ninety-nine".