131240237603 has 2 divisors, whose sum is σ = 131240237604. Its totient is φ = 131240237602.

The previous prime is 131240237591. The next prime is 131240237617. The reversal of 131240237603 is 306732042131.

It is a weak prime.

It is an emirp because it is prime and its reverse (306732042131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131240237603 - 2¹⁶ = 131240172067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131240237603.

It is not a weakly prime, because it can be changed into another prime (131240237663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65620118801 + 65620118802.

It is an arithmetic number, because the mean of its divisors is an integer number (65620118802).

Almost surely, 2^131240237603 is an apocalyptic number.

131240237603 is a deficient number, since it is larger than the sum of its proper divisors (1).

131240237603 is an equidigital number, since it uses as much as digits as its factorization.

131240237603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

Adding to 131240237603 its reverse (306732042131), we get a palindrome (437972279734).

The spelling of 131240237603 in words is "one hundred thirty-one billion, two hundred forty million, two hundred thirty-seven thousand, six hundred three".