101211023213 has 2 divisors, whose sum is σ = 101211023214. Its totient is φ = 101211023212.

The previous prime is 101211023209. The next prime is 101211023237. The reversal of 101211023213 is 312320112101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71317304809 + 29893718404 = 267053^2 + 172898^2 .

It is an emirp because it is prime and its reverse (312320112101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101211023213 - 2² = 101211023209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101211023191 and 101211023200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101211023273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605511606 + 50605511607.

It is an arithmetic number, because the mean of its divisors is an integer number (50605511607).

Almost surely, 2^101211023213 is an apocalyptic number.

It is an amenable number.

101211023213 is a deficient number, since it is larger than the sum of its proper divisors (1).

101211023213 is an equidigital number, since it uses as much as digits as its factorization.

101211023213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 101211023213 its reverse (312320112101), we get a palindrome (413531135314).

The spelling of 101211023213 in words is "one hundred one billion, two hundred eleven million, twenty-three thousand, two hundred thirteen".