212431411097 has 2 divisors, whose sum is σ = 212431411098. Its totient is φ = 212431411096.

The previous prime is 212431411013. The next prime is 212431411111. The reversal of 212431411097 is 790114134212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202807016281 + 9624394816 = 450341^2 + 98104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212431411097 is a prime.

It is a super-2 number, since 2×212431411097² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212431411397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106215705548 + 106215705549.

It is an arithmetic number, because the mean of its divisors is an integer number (106215705549).

Almost surely, 2^212431411097 is an apocalyptic number.

It is an amenable number.

212431411097 is a deficient number, since it is larger than the sum of its proper divisors (1).

212431411097 is an equidigital number, since it uses as much as digits as its factorization.

212431411097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 212431411097 in words is "two hundred twelve billion, four hundred thirty-one million, four hundred eleven thousand, ninety-seven".