31434111243 has 12 divisors (see below), whose sum is σ = 45416088328. Its totient is φ = 20950876800.

The previous prime is 31434111227. The next prime is 31434111257. The reversal of 31434111243 is 34211143413.

31434111243 is a `hidden beast` number, since 3 + 1 + 4 + 3 + 411 + 1 + 243 = 666.

It is not a de Polignac number, because 31434111243 - 2⁴ = 31434111227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31434131243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 394630 + ... + 467547.

Almost surely, 2^31434111243 is an apocalyptic number.

31434111243 is a deficient number, since it is larger than the sum of its proper divisors (13981977085).

31434111243 is a wasteful number, since it uses less digits than its factorization.

31434111243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866234 (or 866231 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 31434111243 its reverse (34211143413), we get a palindrome (65645254656).

The spelling of 31434111243 in words is "thirty-one billion, four hundred thirty-four million, one hundred eleven thousand, two hundred forty-three".