2312120211121 has 8 divisors (see below), whose sum is σ = 2706872442624. Its totient is φ = 1933480315680.

The previous prime is 2312120211101. The next prime is 2312120211143. The reversal of 2312120211121 is 1211120212132.

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

It is not a de Polignac number, because 2312120211121 - 2¹³ = 2312120202929 is a prime.

It is a super-2 number, since 2×2312120211121² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2312120211101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4028083705 + ... + 4028084278.

It is an arithmetic number, because the mean of its divisors is an integer number (338359055328).

Almost surely, 2^{2312120211121} is an apocalyptic number.

It is an amenable number.

2312120211121 is a deficient number, since it is larger than the sum of its proper divisors (394752231503).

2312120211121 is an equidigital number, since it uses as much as digits as its factorization.

2312120211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8056168031.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2312120211121 its reverse (1211120212132), we get a palindrome (3523240423253).

The spelling of 2312120211121 in words is "two trillion, three hundred twelve billion, one hundred twenty million, two hundred eleven thousand, one hundred twenty-one".