131004437613 has 16 divisors (see below), whose sum is σ = 211368504960. Its totient is φ = 70456167936.

The previous prime is 131004437609. The next prime is 131004437621. The reversal of 131004437613 is 316734400131.

It is not a de Polignac number, because 131004437613 - 2² = 131004437609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131004433613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183479248 + ... + 183479961.

It is an arithmetic number, because the mean of its divisors is an integer number (13210531560).

Almost surely, 2^131004437613 is an apocalyptic number.

It is an amenable number.

131004437613 is a deficient number, since it is larger than the sum of its proper divisors (80364067347).

131004437613 is a wasteful number, since it uses less digits than its factorization.

131004437613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366959236.

The product of its (nonzero) digits is 18144, while the sum is 33.

Adding to 131004437613 its reverse (316734400131), we get a palindrome (447738837744).

The spelling of 131004437613 in words is "one hundred thirty-one billion, four million, four hundred thirty-seven thousand, six hundred thirteen".