101421213 has 4 divisors (see below), whose sum is σ = 135228288. Its totient is φ = 67614140.

The previous prime is 101421209. The next prime is 101421233. The reversal of 101421213 is 312124101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101421213 - 2² = 101421209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101421192 and 101421201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101421233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16903533 + ... + 16903538.

It is an arithmetic number, because the mean of its divisors is an integer number (33807072).

Almost surely, 2^101421213 is an apocalyptic number.

It is an amenable number.

101421213 is a deficient number, since it is larger than the sum of its proper divisors (33807075).

101421213 is an equidigital number, since it uses as much as digits as its factorization.

101421213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33807074.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 101421213 is about 10070.8099475663. The cubic root of 101421213 is about 466.3474433063.

Adding to 101421213 its reverse (312124101), we get a palindrome (413545314).

The spelling of 101421213 in words is "one hundred one million, four hundred twenty-one thousand, two hundred thirteen".