213223011112061 has 2 divisors, whose sum is σ = 213223011112062. Its totient is φ = 213223011112060.

The previous prime is 213223011111997. The next prime is 213223011112081. The reversal of 213223011112061 is 160211110322312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148401270184036 + 64821740928025 = 12182006^2 + 8051195^2 .

It is a cyclic number.

It is not a de Polignac number, because 213223011112061 - 2⁶ = 213223011111997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213223011112061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213223011112081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106611505556030 + 106611505556031.

It is an arithmetic number, because the mean of its divisors is an integer number (106611505556031).

Almost surely, 2^{213223011112061} is an apocalyptic number.

It is an amenable number.

213223011112061 is a deficient number, since it is larger than the sum of its proper divisors (1).

213223011112061 is an equidigital number, since it uses as much as digits as its factorization.

213223011112061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 213223011112061 its reverse (160211110322312), we get a palindrome (373434121434373).

The spelling of 213223011112061 in words is "two hundred thirteen trillion, two hundred twenty-three billion, eleven million, one hundred twelve thousand, sixty-one".