143102131 has 2 divisors, whose sum is σ = 143102132. Its totient is φ = 143102130.

The previous prime is 143102111. The next prime is 143102143. The reversal of 143102131 is 131201341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143102131 - 2⁹ = 143101619 is a prime.

It is a super-2 number, since 2×143102131² = 40956439793482322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (143102111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71551065 + 71551066.

It is an arithmetic number, because the mean of its divisors is an integer number (71551066).

Almost surely, 2^143102131 is an apocalyptic number.

143102131 is a deficient number, since it is larger than the sum of its proper divisors (1).

143102131 is an equidigital number, since it uses as much as digits as its factorization.

143102131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 143102131 is about 11962.5302925426. The cubic root of 143102131 is about 523.0566167517.

Adding to 143102131 its reverse (131201341), we get a palindrome (274303472).

The spelling of 143102131 in words is "one hundred forty-three million, one hundred two thousand, one hundred thirty-one".