212740637323 has 2 divisors, whose sum is σ = 212740637324. Its totient is φ = 212740637322.

The previous prime is 212740637233. The next prime is 212740637327. The reversal of 212740637323 is 323736047212.

It is a happy number.

Together with previous prime (212740637233) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212740637323 - 2¹³ = 212740629131 is a prime.

It is not a weakly prime, because it can be changed into another prime (212740637327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106370318661 + 106370318662.

It is an arithmetic number, because the mean of its divisors is an integer number (106370318662).

Almost surely, 2^212740637323 is an apocalyptic number.

212740637323 is a deficient number, since it is larger than the sum of its proper divisors (1).

212740637323 is an equidigital number, since it uses as much as digits as its factorization.

212740637323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 40.

The spelling of 212740637323 in words is "two hundred twelve billion, seven hundred forty million, six hundred thirty-seven thousand, three hundred twenty-three".