1203230509 has 8 divisors (see below), whose sum is σ = 1296109080. Its totient is φ = 1110398016.

The previous prime is 1203230467. The next prime is 1203230513. The reversal of 1203230509 is 9050323021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 327248100 + 875982409 = 18090^2 + 29597^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1203230509 - 2⁷ = 1203230381 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 (1203230519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58539 + ... + 76375.

It is an arithmetic number, because the mean of its divisors is an integer number (162013635).

Almost surely, 2^1203230509 is an apocalyptic number.

It is an amenable number.

1203230509 is a deficient number, since it is larger than the sum of its proper divisors (92878571).

1203230509 is a wasteful number, since it uses less digits than its factorization.

1203230509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23039.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1203230509 is about 34687.6131926081. The cubic root of 1203230509 is about 1063.6113058732.

The spelling of 1203230509 in words is "one billion, two hundred three million, two hundred thirty thousand, five hundred nine".