101213291 has 6 divisors (see below), whose sum is σ = 107517540. Its totient is φ = 95259296.

The previous prime is 101213279. The next prime is 101213311. The reversal of 101213291 is 192312101.

It is not a de Polignac number, because 101213291 - 2⁶ = 101213227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101213201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174821 + ... + 175398.

It is an arithmetic number, because the mean of its divisors is an integer number (17919590).

Almost surely, 2^101213291 is an apocalyptic number.

101213291 is a deficient number, since it is larger than the sum of its proper divisors (6304249).

101213291 is an equidigital number, since it uses as much as digits as its factorization.

101213291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350253 (or 350236 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 101213291 is about 10060.4816485097. The cubic root of 101213291 is about 466.0285414804.

Adding to 101213291 its reverse (192312101), we get a palindrome (293525392).

The spelling of 101213291 in words is "one hundred one million, two hundred thirteen thousand, two hundred ninety-one".