131403432230518 has 12 divisors (see below), whose sum is σ = 229285580728932. Its totient is φ = 56315756670180.

The previous prime is 131403432230513. The next prime is 131403432230519. The reversal of 131403432230518 is 815032234304131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131403432230513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 670425674548 + ... + 670425674743.

It is an arithmetic number, because the mean of its divisors is an integer number (19107131727411).

Almost surely, 2^{131403432230518} is an apocalyptic number.

131403432230518 is a deficient number, since it is larger than the sum of its proper divisors (97882148498414).

131403432230518 is a wasteful number, since it uses less digits than its factorization.

131403432230518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340851349307 (or 1340851349300 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

Adding to 131403432230518 its reverse (815032234304131), we get a palindrome (946435666534649).

The spelling of 131403432230518 in words is "one hundred thirty-one trillion, four hundred three billion, four hundred thirty-two million, two hundred thirty thousand, five hundred eighteen".