31234131243 has 48 divisors (see below), whose sum is σ = 52622571456. Its totient is φ = 17481784320.

The previous prime is 31234131223. The next prime is 31234131281. The reversal of 31234131243 is 34213143213.

It is a happy number.

31234131243 is a `hidden beast` number, since 3 + 1 + 2 + 3 + 413 + 1 + 243 = 666.

It is not a de Polignac number, because 31234131243 - 2⁸ = 31234130987 is a prime.

It is a super-3 number, since 3×31234131243³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (31234131223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2052583 + ... + 2067743.

It is an arithmetic number, because the mean of its divisors is an integer number (1096303572).

Almost surely, 2^31234131243 is an apocalyptic number.

31234131243 is a deficient number, since it is larger than the sum of its proper divisors (21388440213).

31234131243 is a wasteful number, since it uses less digits than its factorization.

31234131243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15844 (or 15841 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 31234131243 its reverse (34213143213), we get a palindrome (65447274456).

The spelling of 31234131243 in words is "thirty-one billion, two hundred thirty-four million, one hundred thirty-one thousand, two hundred forty-three".