212013232073 has 2 divisors, whose sum is σ = 212013232074. Its totient is φ = 212013232072.

The previous prime is 212013232069. The next prime is 212013232087. The reversal of 212013232073 is 370232310212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159522756409 + 52490475664 = 399403^2 + 229108^2 .

It is a cyclic number.

It is not a de Polignac number, because 212013232073 - 2² = 212013232069 is a prime.

It is a super-2 number, since 2×212013232073² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212013232003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006616036 + 106006616037.

It is an arithmetic number, because the mean of its divisors is an integer number (106006616037).

Almost surely, 2^212013232073 is an apocalyptic number.

It is an amenable number.

212013232073 is a deficient number, since it is larger than the sum of its proper divisors (1).

212013232073 is an equidigital number, since it uses as much as digits as its factorization.

212013232073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 212013232073 its reverse (370232310212), we get a palindrome (582245542285).

The spelling of 212013232073 in words is "two hundred twelve billion, thirteen million, two hundred thirty-two thousand, seventy-three".