121230122110131 has 4 divisors (see below), whose sum is σ = 161640162813512. Its totient is φ = 80820081406752.

The previous prime is 121230122110039. The next prime is 121230122110133. The reversal of 121230122110131 is 131011221032121.

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

It is not a de Polignac number, because 121230122110131 - 2¹⁹ = 121230121585843 is a prime.

It is a super-2 number, since 2×121230122110131² (a number of 29 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 = 121230122110098 and 121230122110107.

It is not an unprimeable number, because it can be changed into a prime (121230122110133) 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 3 ways as a sum of consecutive naturals, for example, 20205020351686 + ... + 20205020351691.

It is an arithmetic number, because the mean of its divisors is an integer number (40410040703378).

Almost surely, 2^{121230122110131} is an apocalyptic number.

121230122110131 is a deficient number, since it is larger than the sum of its proper divisors (40410040703381).

121230122110131 is an equidigital number, since it uses as much as digits as its factorization.

121230122110131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40410040703380.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 121230122110131 its reverse (131011221032121), we get a palindrome (252241343142252).

The spelling of 121230122110131 in words is "one hundred twenty-one trillion, two hundred thirty billion, one hundred twenty-two million, one hundred ten thousand, one hundred thirty-one".