31304133243 has 12 divisors (see below), whose sum is σ = 45406277280. Its totient is φ = 20782100976.

The previous prime is 31304133227. The next prime is 31304133269. The reversal of 31304133243 is 34233140313.

31304133243 is a `hidden beast` number, since 3 + 1 + 3 + 0 + 413 + 3 + 243 = 666.

It is not a de Polignac number, because 31304133243 - 2⁴ = 31304133227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31304133043) 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, 7274496 + ... + 7278797.

It is an arithmetic number, because the mean of its divisors is an integer number (3783856440).

Almost surely, 2^31304133243 is an apocalyptic number.

31304133243 is a deficient number, since it is larger than the sum of its proper divisors (14102144037).

31304133243 is a wasteful number, since it uses less digits than its factorization.

31304133243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14553538 (or 14553535 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 31304133243 its reverse (34233140313), we get a palindrome (65537273556).

The spelling of 31304133243 in words is "thirty-one billion, three hundred four million, one hundred thirty-three thousand, two hundred forty-three".