131121311010023 has 16 divisors (see below), whose sum is σ = 136370164140000. Its totient is φ = 125922016507392.

The previous prime is 131121311009959. The next prime is 131121311010049. The reversal of 131121311010023 is 320010113121131.

It is a cyclic number.

It is not a de Polignac number, because 131121311010023 - 2⁶ = 131121311009959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131121311009977 and 131121311010004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131121311010523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2588318 + ... + 16399451.

It is an arithmetic number, because the mean of its divisors is an integer number (8523135258750).

Almost surely, 2^{131121311010023} is an apocalyptic number.

131121311010023 is a deficient number, since it is larger than the sum of its proper divisors (5248853129977).

131121311010023 is a wasteful number, since it uses less digits than its factorization.

131121311010023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18989074.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 131121311010023 its reverse (320010113121131), we get a palindrome (451131424131154).

The spelling of 131121311010023 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, three hundred eleven million, ten thousand, twenty-three".