4321111213121 has 8 divisors (see below), whose sum is σ = 4326979357824. Its totient is φ = 4315243374000.

The previous prime is 4321111213093. The next prime is 4321111213171. The reversal of 4321111213121 is 1213121111234.

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 4321111213121 - 2¹⁰ = 4321111212097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4321111213171) 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, 53278226 + ... + 53359268.

It is an arithmetic number, because the mean of its divisors is an integer number (540872419728).

Almost surely, 2^{4321111213121} is an apocalyptic number.

It is an amenable number.

4321111213121 is a deficient number, since it is larger than the sum of its proper divisors (5868144703).

4321111213121 is an equidigital number, since it uses as much as digits as its factorization.

4321111213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152791.

The product of its digits is 288, while the sum is 23.

Adding to 4321111213121 its reverse (1213121111234), we get a palindrome (5534232324355).

The spelling of 4321111213121 in words is "four trillion, three hundred twenty-one billion, one hundred eleven million, two hundred thirteen thousand, one hundred twenty-one".