213301221031097 has 2 divisors, whose sum is σ = 213301221031098. Its totient is φ = 213301221031096.

The previous prime is 213301221031051. The next prime is 213301221031177. The reversal of 213301221031097 is 790130122103312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212662022380096 + 639198651001 = 14582936^2 + 799499^2 .

It is a cyclic number.

It is not a de Polignac number, because 213301221031097 - 2²² = 213301216836793 is a prime.

It is not a weakly prime, because it can be changed into another prime (213301221031027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106650610515548 + 106650610515549.

It is an arithmetic number, because the mean of its divisors is an integer number (106650610515549).

Almost surely, 2^{213301221031097} is an apocalyptic number.

It is an amenable number.

213301221031097 is a deficient number, since it is larger than the sum of its proper divisors (1).

213301221031097 is an equidigital number, since it uses as much as digits as its factorization.

213301221031097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The spelling of 213301221031097 in words is "two hundred thirteen trillion, three hundred one billion, two hundred twenty-one million, thirty-one thousand, ninety-seven".