131520662443 has 2 divisors, whose sum is σ = 131520662444. Its totient is φ = 131520662442.

The previous prime is 131520662431. The next prime is 131520662461. The reversal of 131520662443 is 344266025131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131520662443 - 2⁵ = 131520662411 is a prime.

It is not a weakly prime, because it can be changed into another prime (131520665443) 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 as a sum of consecutive naturals, namely, 65760331221 + 65760331222.

It is an arithmetic number, because the mean of its divisors is an integer number (65760331222).

Almost surely, 2^131520662443 is an apocalyptic number.

131520662443 is a deficient number, since it is larger than the sum of its proper divisors (1).

131520662443 is an equidigital number, since it uses as much as digits as its factorization.

131520662443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 131520662443 its reverse (344266025131), we get a palindrome (475786687574).

The spelling of 131520662443 in words is "one hundred thirty-one billion, five hundred twenty million, six hundred sixty-two thousand, four hundred forty-three".