1202231313 has 24 divisors (see below), whose sum is σ = 1859387400. Its totient is φ = 745857024.

The previous prime is 1202231293. The next prime is 1202231333. The reversal of 1202231313 is 3131322021.

1202231313 is a `hidden beast` number, since 120 + 2 + 231 + 313 = 666.

It is an interprime number because it is at equal distance from previous prime (1202231293) and next prime (1202231333).

It can be written as a sum of positive squares in 4 ways, for example, as 362217024 + 840014289 = 19032^2 + 28983^2 .

It is not a de Polignac number, because 1202231313 - 2⁹ = 1202230801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1202231333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30528 + ... + 57761.

It is an arithmetic number, because the mean of its divisors is an integer number (77474475).

Almost surely, 2^1202231313 is an apocalyptic number.

It is an amenable number.

1202231313 is a deficient number, since it is larger than the sum of its proper divisors (657156087).

1202231313 is a wasteful number, since it uses less digits than its factorization.

1202231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88401 (or 88398 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1202231313 is about 34673.2074230233. The cubic root of 1202231313 is about 1063.3168068915.

Adding to 1202231313 its reverse (3131322021), we get a palindrome (4333553334).

The spelling of 1202231313 in words is "one billion, two hundred two million, two hundred thirty-one thousand, three hundred thirteen".