131121022023131 has 8 divisors (see below), whose sum is σ = 149852724478464. Its totient is φ = 112389351537960.

The previous prime is 131121022023119. The next prime is 131121022023163. The reversal of 131121022023131 is 131320220121131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-131121022023131 is a prime.

It is a super-2 number, since 2×131121022023131² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131121022023097 and 131121022023106.

It is not an unprimeable number, because it can be changed into a prime (131121022023331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1556696 + ... + 16268538.

It is an arithmetic number, because the mean of its divisors is an integer number (18731590559808).

Almost surely, 2^{131121022023131} is an apocalyptic number.

131121022023131 is a deficient number, since it is larger than the sum of its proper divisors (18731702455333).

131121022023131 is a wasteful number, since it uses less digits than its factorization.

131121022023131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15985081.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 131121022023131 its reverse (131320220121131), we get a palindrome (262441242144262).

The spelling of 131121022023131 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, twenty-two million, twenty-three thousand, one hundred thirty-one".