131534423435 has 4 divisors (see below), whose sum is σ = 157841308128. Its totient is φ = 105227538744.

The previous prime is 131534423407. The next prime is 131534423507. The reversal of 131534423435 is 534324435131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131534423435 - 2³⁶ = 62814946699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13153442339 + ... + 13153442348.

It is an arithmetic number, because the mean of its divisors is an integer number (39460327032).

Almost surely, 2^131534423435 is an apocalyptic number.

131534423435 is a deficient number, since it is larger than the sum of its proper divisors (26306884693).

131534423435 is an equidigital number, since it uses as much as digits as its factorization.

131534423435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26306884692.

The product of its digits is 259200, while the sum is 38.

Adding to 131534423435 its reverse (534324435131), we get a palindrome (665858858566).

The spelling of 131534423435 in words is "one hundred thirty-one billion, five hundred thirty-four million, four hundred twenty-three thousand, four hundred thirty-five".