31301230202243 has 2 divisors, whose sum is σ = 31301230202244. Its totient is φ = 31301230202242.

The previous prime is 31301230202117. The next prime is 31301230202273. The reversal of 31301230202243 is 34220203210313.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31301230202243 - 2²⁶ = 31301163093379 is a prime.

It is not a weakly prime, because it can be changed into another prime (31301230202273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650615101121 + 15650615101122.

It is an arithmetic number, because the mean of its divisors is an integer number (15650615101122).

Almost surely, 2^{31301230202243} is an apocalyptic number.

31301230202243 is a deficient number, since it is larger than the sum of its proper divisors (1).

31301230202243 is an equidigital number, since it uses as much as digits as its factorization.

31301230202243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31301230202243 its reverse (34220203210313), we get a palindrome (65521433412556).

The spelling of 31301230202243 in words is "thirty-one trillion, three hundred one billion, two hundred thirty million, two hundred two thousand, two hundred forty-three".