320012101 has 4 divisors (see below), whose sum is σ = 330335104. Its totient is φ = 309689100.

The previous prime is 320012089. The next prime is 320012107. The reversal of 320012101 is 101210023.

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, and also an emirpimes, since its reverse is a distinct semiprime: 101210023 = 3461 ⋅29243.

It is a cyclic number.

It is not a de Polignac number, because 320012101 - 2⁷ = 320011973 is a prime.

It is a super-3 number, since 3×320012101³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320012107) 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, 5161455 + ... + 5161516.

It is an arithmetic number, because the mean of its divisors is an integer number (82583776).

Almost surely, 2^320012101 is an apocalyptic number.

320012101 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

320012101 is a deficient number, since it is larger than the sum of its proper divisors (10323003).

320012101 is a wasteful number, since it uses less digits than its factorization.

320012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10323002.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 320012101 is about 17888.8820500332. The cubic root of 320012101 is about 683.9990004032. Note that the first 3 decimals are identical.

Adding to 320012101 its reverse (101210023), we get a palindrome (421222124).

The spelling of 320012101 in words is "three hundred twenty million, twelve thousand, one hundred one".