31140201143 has 2 divisors, whose sum is σ = 31140201144. Its totient is φ = 31140201142.

The previous prime is 31140201133. The next prime is 31140201167. The reversal of 31140201143 is 34110204113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31140201143 - 2³² = 26845233847 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31140201133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15570100571 + 15570100572.

It is an arithmetic number, because the mean of its divisors is an integer number (15570100572).

Almost surely, 2^31140201143 is an apocalyptic number.

31140201143 is a deficient number, since it is larger than the sum of its proper divisors (1).

31140201143 is an equidigital number, since it uses as much as digits as its factorization.

31140201143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31140201143 its reverse (34110204113), we get a palindrome (65250405256).

The spelling of 31140201143 in words is "thirty-one billion, one hundred forty million, two hundred one thousand, one hundred forty-three".