101214321 has 16 divisors (see below), whose sum is σ = 150346560. Its totient is φ = 60137280.

The previous prime is 101214317. The next prime is 101214331. The reversal of 101214321 is 123412101.

It is not a de Polignac number, because 101214321 - 2² = 101214317 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 101214321.

It is not an unprimeable number, because it can be changed into a prime (101214331) 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, 43615 + ... + 45876.

It is an arithmetic number, because the mean of its divisors is an integer number (9396660).

Almost surely, 2^101214321 is an apocalyptic number.

It is an amenable number.

101214321 is a deficient number, since it is larger than the sum of its proper divisors (49132239).

101214321 is a wasteful number, since it uses less digits than its factorization.

101214321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89536.

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

The square root of 101214321 is about 10060.5328387715. The cubic root of 101214321 is about 466.0301223260.

Adding to 101214321 its reverse (123412101), we get a palindrome (224626422).

The spelling of 101214321 in words is "one hundred one million, two hundred fourteen thousand, three hundred twenty-one".