3101213121 has 8 divisors (see below), whose sum is σ = 4196666784. Its totient is φ = 2036617440.

The previous prime is 3101213113. The next prime is 3101213179. The reversal of 3101213121 is 1213121013.

It is a happy number.

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

It is not a de Polignac number, because 3101213121 - 2³ = 3101213113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3101213121.

It is not an unprimeable number, because it can be changed into a prime (3101213821) 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, 7714260 + ... + 7714661.

It is an arithmetic number, because the mean of its divisors is an integer number (524583348).

Almost surely, 2^3101213121 is an apocalyptic number.

It is an amenable number.

3101213121 is a deficient number, since it is larger than the sum of its proper divisors (1095453663).

3101213121 is a wasteful number, since it uses less digits than its factorization.

3101213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15428991.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 3101213121 is about 55688.5367108887. The cubic root of 3101213121 is about 1458.2899100982.

Adding to 3101213121 its reverse (1213121013), we get a palindrome (4314334134).

The spelling of 3101213121 in words is "three billion, one hundred one million, two hundred thirteen thousand, one hundred twenty-one".