121123102010131 has 32 divisors (see below), whose sum is σ = 135286505816000. Its totient is φ = 107731395491328.

The previous prime is 121123102010093. The next prime is 121123102010177. The reversal of 121123102010131 is 131010201321121.

It is not a de Polignac number, because 121123102010131 - 2¹⁹ = 121123101485843 is a prime.

It is a super-2 number, since 2×121123102010131² (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 = 121123102010099 and 121123102010108.

It is not an unprimeable number, because it can be changed into a prime (121123102010191) 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 31 ways as a sum of consecutive naturals, for example, 9612865 + ... + 18293533.

It is an arithmetic number, because the mean of its divisors is an integer number (4227703306750).

Almost surely, 2^{121123102010131} is an apocalyptic number.

121123102010131 is a deficient number, since it is larger than the sum of its proper divisors (14163403805869).

121123102010131 is a wasteful number, since it uses less digits than its factorization.

121123102010131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8681063.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 121123102010131 its reverse (131010201321121), we get a palindrome (252133303331252).

The spelling of 121123102010131 in words is "one hundred twenty-one trillion, one hundred twenty-three billion, one hundred two million, ten thousand, one hundred thirty-one".