30231331021943 has 2 divisors, whose sum is σ = 30231331021944. Its totient is φ = 30231331021942.

The previous prime is 30231331021847. The next prime is 30231331022003. The reversal of 30231331021943 is 34912013313203.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30231331021943 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 (30231331021043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15115665510971 + 15115665510972.

It is an arithmetic number, because the mean of its divisors is an integer number (15115665510972).

Almost surely, 2^{30231331021943} is an apocalyptic number.

30231331021943 is a deficient number, since it is larger than the sum of its proper divisors (1).

30231331021943 is an equidigital number, since it uses as much as digits as its factorization.

30231331021943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 35.

The spelling of 30231331021943 in words is "thirty trillion, two hundred thirty-one billion, three hundred thirty-one million, twenty-one thousand, nine hundred forty-three".