131235423653 has 16 divisors (see below), whose sum is σ = 135873079296. Its totient is φ = 126623502720.

The previous prime is 131235423647. The next prime is 131235423661. The reversal of 131235423653 is 356324532131.

It is not a de Polignac number, because 131235423653 - 2¹⁶ = 131235358117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131235423623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22848500 + ... + 22854242.

It is an arithmetic number, because the mean of its divisors is an integer number (8492067456).

Almost surely, 2^131235423653 is an apocalyptic number.

It is an amenable number.

131235423653 is a deficient number, since it is larger than the sum of its proper divisors (4637655643).

131235423653 is a wasteful number, since it uses less digits than its factorization.

131235423653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7844.

The product of its digits is 194400, while the sum is 38.

Adding to 131235423653 its reverse (356324532131), we get a palindrome (487559955784).

The spelling of 131235423653 in words is "one hundred thirty-one billion, two hundred thirty-five million, four hundred twenty-three thousand, six hundred fifty-three".