102320121 has 8 divisors (see below), whose sum is σ = 136651840. Its totient is φ = 68100912.

The previous prime is 102320107. The next prime is 102320129. The reversal of 102320121 is 121023201.

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

It is not a de Polignac number, because 102320121 - 2¹⁹ = 101795833 is a prime.

It is a super-2 number, since 2×102320121² = 20938814322909282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102320097 and 102320106.

It is not an unprimeable number, because it can be changed into a prime (102320129) 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, 25981 + ... + 29658.

It is an arithmetic number, because the mean of its divisors is an integer number (17081480).

Almost surely, 2^102320121 is an apocalyptic number.

It is an amenable number.

102320121 is a deficient number, since it is larger than the sum of its proper divisors (34331719).

102320121 is an equidigital number, since it uses as much as digits as its factorization.

102320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56255.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 102320121 is about 10115.3408741377. The cubic root of 102320121 is about 467.7211566702.

Adding to 102320121 its reverse (121023201), we get a palindrome (223343322).

The spelling of 102320121 in words is "one hundred two million, three hundred twenty thousand, one hundred twenty-one".