231302202133 has 2 divisors, whose sum is σ = 231302202134. Its totient is φ = 231302202132.

The previous prime is 231302202107. The next prime is 231302202137. The reversal of 231302202133 is 331202203132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230377920529 + 924281604 = 479977^2 + 30402^2 .

It is a cyclic number.

It is not a de Polignac number, because 231302202133 - 2⁵ = 231302202101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231302202137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115651101066 + 115651101067.

It is an arithmetic number, because the mean of its divisors is an integer number (115651101067).

Almost surely, 2^231302202133 is an apocalyptic number.

It is an amenable number.

231302202133 is a deficient number, since it is larger than the sum of its proper divisors (1).

231302202133 is an equidigital number, since it uses as much as digits as its factorization.

231302202133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 231302202133 its reverse (331202203132), we get a palindrome (562504405265).

Subtracting 231302202133 from its reverse (331202203132), we obtain a palindrome (99900000999).

The spelling of 231302202133 in words is "two hundred thirty-one billion, three hundred two million, two hundred two thousand, one hundred thirty-three".