31143031043 has 16 divisors (see below), whose sum is σ = 33678771840. Its totient is φ = 28701115200.

The previous prime is 31143031039. The next prime is 31143031061. The reversal of 31143031043 is 34013034113.

It is not a de Polignac number, because 31143031043 - 2² = 31143031039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31143031093) 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 15 ways as a sum of consecutive naturals, for example, 212708 + ... + 327918.

It is an arithmetic number, because the mean of its divisors is an integer number (2104923240).

Almost surely, 2^31143031043 is an apocalyptic number.

31143031043 is a deficient number, since it is larger than the sum of its proper divisors (2535740797).

31143031043 is a wasteful number, since it uses less digits than its factorization.

31143031043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115618.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31143031043 its reverse (34013034113), we get a palindrome (65156065156).

The spelling of 31143031043 in words is "thirty-one billion, one hundred forty-three million, thirty-one thousand, forty-three".