31031143434 has 48 divisors (see below), whose sum is σ = 68079184992. Its totient is φ = 10213837344.

The previous prime is 31031143391. The next prime is 31031143471. The reversal of 31031143434 is 43434113013.

31031143434 is a `hidden beast` number, since 3 + 1 + 0 + 311 + 4 + 343 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 31031143398 and 31031143407.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3816097 + ... + 3824219.

It is an arithmetic number, because the mean of its divisors is an integer number (1418316354).

Almost surely, 2^31031143434 is an apocalyptic number.

31031143434 is an abundant number, since it is smaller than the sum of its proper divisors (37048041558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31031143434 is a wasteful number, since it uses less digits than its factorization.

31031143434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10771 (or 10768 counting only the distinct ones).

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

Adding to 31031143434 its reverse (43434113013), we get a palindrome (74465256447).

The spelling of 31031143434 in words is "thirty-one billion, thirty-one million, one hundred forty-three thousand, four hundred thirty-four".