1202313231 has 12 divisors (see below), whose sum is σ = 1984771152. Its totient is φ = 687036096.

The previous prime is 1202313163. The next prime is 1202313241. The reversal of 1202313231 is 1323132021.

1202313231 is a `hidden beast` number, since 120 + 2 + 313 + 231 = 666.

1202313231 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1202313231 - 2¹⁴ = 1202296847 is a prime.

It is a super-2 number, since 2×1202313231² = 2891114210875318722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202313241) 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, 9542106 + ... + 9542231.

It is an arithmetic number, because the mean of its divisors is an integer number (165397596).

Almost surely, 2^1202313231 is an apocalyptic number.

1202313231 is a deficient number, since it is larger than the sum of its proper divisors (782457921).

1202313231 is a wasteful number, since it uses less digits than its factorization.

1202313231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19084350 (or 19084347 counting only the distinct ones).

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

The square root of 1202313231 is about 34674.3886896366. The cubic root of 1202313231 is about 1063.3409572101.

Adding to 1202313231 its reverse (1323132021), we get a palindrome (2525445252).

The spelling of 1202313231 in words is "one billion, two hundred two million, three hundred thirteen thousand, two hundred thirty-one".