131120023522 has 4 divisors (see below), whose sum is σ = 196680035286. Its totient is φ = 65560011760.

The previous prime is 131120023513. The next prime is 131120023561. The reversal of 131120023522 is 225320021131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225320021131 = 59 ⋅3818983409.

It can be written as a sum of positive squares in only one way, i.e., 127498270761 + 3621752761 = 357069^2 + 60181^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131120023493 and 131120023502.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32780005879 + ... + 32780005882.

Almost surely, 2^131120023522 is an apocalyptic number.

131120023522 is a deficient number, since it is larger than the sum of its proper divisors (65560011764).

131120023522 is an equidigital number, since it uses as much as digits as its factorization.

131120023522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65560011763.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 131120023522 its reverse (225320021131), we get a palindrome (356440044653).

The spelling of 131120023522 in words is "one hundred thirty-one billion, one hundred twenty million, twenty-three thousand, five hundred twenty-two".