12102031120121 has 4 divisors (see below), whose sum is σ = 12197322703872. Its totient is φ = 12006739536372.

The previous prime is 12102031120079. The next prime is 12102031120183. The reversal of 12102031120121 is 12102113020121.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 12102031120121 - 2¹⁴ = 12102031103737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12102031120121.

It is not an unprimeable number, because it can be changed into a prime (12102031120721) 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, 47645791685 + ... + 47645791938.

It is an arithmetic number, because the mean of its divisors is an integer number (3049330675968).

Almost surely, 2^{12102031120121} is an apocalyptic number.

It is an amenable number.

12102031120121 is a deficient number, since it is larger than the sum of its proper divisors (95291583751).

12102031120121 is an equidigital number, since it uses as much as digits as its factorization.

12102031120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95291583750.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12102031120121 its reverse (12102113020121), we get a palindrome (24204144140242).

The spelling of 12102031120121 in words is "twelve trillion, one hundred two billion, thirty-one million, one hundred twenty thousand, one hundred twenty-one".