2312002121 has 8 divisors (see below), whose sum is σ = 2716198464. Its totient is φ = 1940141520.

The previous prime is 2312002117. The next prime is 2312002139. The reversal of 2312002121 is 1212002132.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2312002121 - 2² = 2312002117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2312002096 and 2312002105.

It is not an unprimeable number, because it can be changed into a prime (2312002141) 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, 8083781 + ... + 8084066.

It is an arithmetic number, because the mean of its divisors is an integer number (339524808).

Almost surely, 2^2312002121 is an apocalyptic number.

It is an amenable number.

2312002121 is a deficient number, since it is larger than the sum of its proper divisors (404196343).

2312002121 is a wasteful number, since it uses less digits than its factorization.

2312002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16167871.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2312002121 is about 48083.2831761726. The cubic root of 2312002121 is about 1322.2982080446.

Adding to 2312002121 its reverse (1212002132), we get a palindrome (3524004253).

The spelling of 2312002121 in words is "two billion, three hundred twelve million, two thousand, one hundred twenty-one".