4243211431997 has 2 divisors, whose sum is σ = 4243211431998. Its totient is φ = 4243211431996.

The previous prime is 4243211431957. The next prime is 4243211432017. The reversal of 4243211431997 is 7991341123424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3449269842841 + 793941589156 = 1857221^2 + 891034^2 .

It is a cyclic number.

It is not a de Polignac number, because 4243211431997 - 2⁶ = 4243211431933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4243211431957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121605715998 + 2121605715999.

It is an arithmetic number, because the mean of its divisors is an integer number (2121605715999).

Almost surely, 2^{4243211431997} is an apocalyptic number.

It is an amenable number.

4243211431997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243211431997 is an equidigital number, since it uses as much as digits as its factorization.

4243211431997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 50.

The spelling of 4243211431997 in words is "four trillion, two hundred forty-three billion, two hundred eleven million, four hundred thirty-one thousand, nine hundred ninety-seven".