121223102131 has 8 divisors (see below), whose sum is σ = 121513911200. Its totient is φ = 120932360640.

The previous prime is 121223102089. The next prime is 121223102171. The reversal of 121223102131 is 131201322121.

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 121223102131 - 2¹⁷ = 121222971059 is a prime.

It is a super-2 number, since 2×121223102131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121223102099 and 121223102108.

It is not an unprimeable number, because it can be changed into a prime (121223102171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6702841 + ... + 6720901.

It is an arithmetic number, because the mean of its divisors is an integer number (15189238900).

Almost surely, 2^121223102131 is an apocalyptic number.

121223102131 is a deficient number, since it is larger than the sum of its proper divisors (290809069).

121223102131 is a wasteful number, since it uses less digits than its factorization.

121223102131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33789.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121223102131 its reverse (131201322121), we get a palindrome (252424424252).

The spelling of 121223102131 in words is "one hundred twenty-one billion, two hundred twenty-three million, one hundred two thousand, one hundred thirty-one".