101211243 has 16 divisors (see below), whose sum is σ = 158396160. Its totient is φ = 56271456.

The previous prime is 101211241. The next prime is 101211269. The reversal of 101211243 is 342112101.

It is not a de Polignac number, because 101211243 - 2¹ = 101211241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101211241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64353 + ... + 65906.

It is an arithmetic number, because the mean of its divisors is an integer number (9899760).

Almost surely, 2^101211243 is an apocalyptic number.

101211243 is a deficient number, since it is larger than the sum of its proper divisors (57184917).

101211243 is a wasteful number, since it uses less digits than its factorization.

101211243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130306.

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

The square root of 101211243 is about 10060.3798636036. The cubic root of 101211243 is about 466.0253981749.

Adding to 101211243 its reverse (342112101), we get a palindrome (443323344).

The spelling of 101211243 in words is "one hundred one million, two hundred eleven thousand, two hundred forty-three".