31004334243 has 6 divisors (see below), whose sum is σ = 44784038364. Its totient is φ = 20669556156.

The previous prime is 31004334241. The next prime is 31004334299. The reversal of 31004334243 is 34243340013.

31004334243 is a `hidden beast` number, since 310 + 0 + 4 + 3 + 342 + 4 + 3 = 666.

It is not a de Polignac number, because 31004334243 - 2¹ = 31004334241 is a prime.

It is a super-2 number, since 2×31004334243² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31004334241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1722463005 + ... + 1722463022.

It is an arithmetic number, because the mean of its divisors is an integer number (7464006394).

Almost surely, 2^31004334243 is an apocalyptic number.

31004334243 is a deficient number, since it is larger than the sum of its proper divisors (13779704121).

31004334243 is a wasteful number, since it uses less digits than its factorization.

31004334243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444926033 (or 3444926030 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 31004334243 its reverse (34243340013), we get a palindrome (65247674256).

The spelling of 31004334243 in words is "thirty-one billion, four million, three hundred thirty-four thousand, two hundred forty-three".