31143032411 has 16 divisors (see below), whose sum is σ = 34726809600. Its totient is φ = 27755353728.

The previous prime is 31143032399. The next prime is 31143032471. The reversal of 31143032411 is 11423034113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31143032411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31143032471) 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 15 ways as a sum of consecutive naturals, for example, 701666 + ... + 744728.

It is an arithmetic number, because the mean of its divisors is an integer number (2170425600).

Almost surely, 2^31143032411 is an apocalyptic number.

31143032411 is a deficient number, since it is larger than the sum of its proper divisors (3583777189).

31143032411 is a wasteful number, since it uses less digits than its factorization.

31143032411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45338.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31143032411 its reverse (11423034113), we get a palindrome (42566066524).

The spelling of 31143032411 in words is "thirty-one billion, one hundred forty-three million, thirty-two thousand, four hundred eleven".