101012312213 has 4 divisors (see below), whose sum is σ = 101570391468. Its totient is φ = 100454232960.

The previous prime is 101012312201. The next prime is 101012312287. The reversal of 101012312213 is 312213210101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8095860529 + 92916451684 = 89977^2 + 304822^2 .

It is a cyclic number.

It is not a de Polignac number, because 101012312213 - 2⁸ = 101012311957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101012312191 and 101012312200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101012312293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279039356 + ... + 279039717.

It is an arithmetic number, because the mean of its divisors is an integer number (25392597867).

Almost surely, 2^101012312213 is an apocalyptic number.

It is an amenable number.

101012312213 is a deficient number, since it is larger than the sum of its proper divisors (558079255).

101012312213 is an equidigital number, since it uses as much as digits as its factorization.

101012312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558079254.

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

Adding to 101012312213 its reverse (312213210101), we get a palindrome (413225522314).

The spelling of 101012312213 in words is "one hundred one billion, twelve million, three hundred twelve thousand, two hundred thirteen".