1202233231 has 4 divisors (see below), whose sum is σ = 1202996200. Its totient is φ = 1201470264.

The previous prime is 1202233223. The next prime is 1202233237. The reversal of 1202233231 is 1323322021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1202233231 - 2³ = 1202233223 is a prime.

It is a super-2 number, since 2×1202233231² = 2890729483441398722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202233199 and 1202233208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202233237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379116 + ... + 382273.

It is an arithmetic number, because the mean of its divisors is an integer number (300749050).

Almost surely, 2^1202233231 is an apocalyptic number.

1202233231 is a deficient number, since it is larger than the sum of its proper divisors (762969).

1202233231 is an equidigital number, since it uses as much as digits as its factorization.

1202233231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762968.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1202233231 is about 34673.2350812554. The cubic root of 1202233231 is about 1063.3173723513.

Adding to 1202233231 its reverse (1323322021), we get a palindrome (2525555252).

The spelling of 1202233231 in words is "one billion, two hundred two million, two hundred thirty-three thousand, two hundred thirty-one".