131403441321 has 16 divisors (see below), whose sum is σ = 201384585600. Its totient is φ = 84581524944.

The previous prime is 131403441317. The next prime is 131403441413. The reversal of 131403441321 is 123144304131.

131403441321 is a `hidden beast` number, since 1 + 314 + 0 + 344 + 1 + 3 + 2 + 1 = 666.

It is not a de Polignac number, because 131403441321 - 2² = 131403441317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (131403441311) 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, 83909461 + ... + 83911026.

It is an arithmetic number, because the mean of its divisors is an integer number (12586536600).

Almost surely, 2^131403441321 is an apocalyptic number.

It is an amenable number.

131403441321 is a deficient number, since it is larger than the sum of its proper divisors (69981144279).

131403441321 is a wasteful number, since it uses less digits than its factorization.

131403441321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167820525 (or 167820519 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 131403441321 its reverse (123144304131), we get a palindrome (254547745452).

The spelling of 131403441321 in words is "one hundred thirty-one billion, four hundred three million, four hundred forty-one thousand, three hundred twenty-one".