131204440403 has 8 divisors (see below), whose sum is σ = 138945110688. Its totient is φ = 123466299264.

The previous prime is 131204440399. The next prime is 131204440489. The reversal of 131204440403 is 304044402131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131204440403 - 2² = 131204440399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131204040403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524951 + ... + 733472.

It is an arithmetic number, because the mean of its divisors is an integer number (17368138836).

Almost surely, 2^131204440403 is an apocalyptic number.

131204440403 is a deficient number, since it is larger than the sum of its proper divisors (7740670285).

131204440403 is a wasteful number, since it uses less digits than its factorization.

131204440403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264573.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 131204440403 its reverse (304044402131), we get a palindrome (435248842534).

The spelling of 131204440403 in words is "one hundred thirty-one billion, two hundred four million, four hundred forty thousand, four hundred three".