101011213 has 8 divisors (see below), whose sum is σ = 102054680. Its totient is φ = 99973440.

The previous prime is 101011189. The next prime is 101011259. The reversal of 101011213 is 312110101.

It can be written as a sum of positive squares in 4 ways, for example, as 30669444 + 70341769 = 5538^2 + 8387^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101011213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101011213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101011283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40231 + ... + 42667.

It is an arithmetic number, because the mean of its divisors is an integer number (12756835).

Almost surely, 2^101011213 is an apocalyptic number.

It is an amenable number.

101011213 is a deficient number, since it is larger than the sum of its proper divisors (1043467).

101011213 is a wasteful number, since it uses less digits than its factorization.

101011213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 101011213 is about 10050.4334732389. The cubic root of 101011213 is about 465.7181841518.

Adding to 101011213 its reverse (312110101), we get a palindrome (413121314).

The spelling of 101011213 in words is "one hundred one million, eleven thousand, two hundred thirteen".