131120202121523 has 8 divisors (see below), whose sum is σ = 131238473882880. Its totient is φ = 131001931946880.

The previous prime is 131120202121481. The next prime is 131120202121591. The reversal of 131120202121523 is 325121202021131.

It is a happy number.

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 131120202121523 - 2³² = 131115907154227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131120202121492 and 131120202121501.

It is not an unprimeable number, because it can be changed into a prime (131120202121423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220098923 + ... + 220693851.

It is an arithmetic number, because the mean of its divisors is an integer number (16404809235360).

Almost surely, 2^{131120202121523} is an apocalyptic number.

131120202121523 is a deficient number, since it is larger than the sum of its proper divisors (118271761357).

131120202121523 is a wasteful number, since it uses less digits than its factorization.

131120202121523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793357.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 131120202121523 its reverse (325121202021131), we get a palindrome (456241404142654).

The spelling of 131120202121523 in words is "one hundred thirty-one trillion, one hundred twenty billion, two hundred two million, one hundred twenty-one thousand, five hundred twenty-three".