131535222351 has 32 divisors (see below), whose sum is σ = 190097107200. Its totient is φ = 80421030144.

The previous prime is 131535222319. The next prime is 131535222361. The reversal of 131535222351 is 153222535131.

It is not a de Polignac number, because 131535222351 - 2⁵ = 131535222319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131535222361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3730000 + ... + 3765098.

It is an arithmetic number, because the mean of its divisors is an integer number (5940534600).

Almost surely, 2^131535222351 is an apocalyptic number.

131535222351 is a deficient number, since it is larger than the sum of its proper divisors (58561884849).

131535222351 is a wasteful number, since it uses less digits than its factorization.

131535222351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35735.

The product of its digits is 27000, while the sum is 33.

Adding to 131535222351 its reverse (153222535131), we get a palindrome (284757757482).

The spelling of 131535222351 in words is "one hundred thirty-one billion, five hundred thirty-five million, two hundred twenty-two thousand, three hundred fifty-one".