121223023031141 has 4 divisors (see below), whose sum is σ = 121223059032300. Its totient is φ = 121222987029984.

The previous prime is 121223023031111. The next prime is 121223023031171. The reversal of 121223023031141 is 141130320322121.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (121223023031111) and next prime (121223023031171).

It can be written as a sum of positive squares in 2 ways, for example, as 92116728280516 + 29106294750625 = 9597746^2 + 5395025^2 .

It is a cyclic number.

It is not a de Polignac number, because 121223023031141 - 2¹⁸ = 121223022768997 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 121223023031141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121223023031111) 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, 12360776 + ... + 19880513.

It is an arithmetic number, because the mean of its divisors is an integer number (30305764758075).

Almost surely, 2^{121223023031141} is an apocalyptic number.

It is an amenable number.

121223023031141 is a deficient number, since it is larger than the sum of its proper divisors (36001159).

121223023031141 is an equidigital number, since it uses as much as digits as its factorization.

121223023031141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36001158.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 121223023031141 its reverse (141130320322121), we get a palindrome (262353343353262).

The spelling of 121223023031141 in words is "one hundred twenty-one trillion, two hundred twenty-three billion, twenty-three million, thirty-one thousand, one hundred forty-one".