143245662431 has 2 divisors, whose sum is σ = 143245662432. Its totient is φ = 143245662430.

The previous prime is 143245662419. The next prime is 143245662499. The reversal of 143245662431 is 134266542341.

It is a weak prime.

It is an emirp because it is prime and its reverse (134266542341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143245662431 is a prime.

It is a super-2 number, since 2×143245662431² (a number of 23 digits) contains 22 as substring.

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 (143245664431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71622831215 + 71622831216.

It is an arithmetic number, because the mean of its divisors is an integer number (71622831216).

Almost surely, 2^143245662431 is an apocalyptic number.

143245662431 is a deficient number, since it is larger than the sum of its proper divisors (1).

143245662431 is an equidigital number, since it uses as much as digits as its factorization.

143245662431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 41.

The spelling of 143245662431 in words is "one hundred forty-three billion, two hundred forty-five million, six hundred sixty-two thousand, four hundred thirty-one".