131013064427 has 4 divisors (see below), whose sum is σ = 149729216496. Its totient is φ = 112296912360.

The previous prime is 131013064409. The next prime is 131013064571. The reversal of 131013064427 is 724460310131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131013064427 - 2¹⁶ = 131012998891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131013064393 and 131013064402.

It is not an unprimeable number, because it can be changed into a prime (131013064627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9358076024 + ... + 9358076037.

It is an arithmetic number, because the mean of its divisors is an integer number (37432304124).

Almost surely, 2^131013064427 is an apocalyptic number.

131013064427 is a deficient number, since it is larger than the sum of its proper divisors (18716152069).

131013064427 is an equidigital number, since it uses as much as digits as its factorization.

131013064427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18716152068.

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 131013064427 its reverse (724460310131), we get a palindrome (855473374558).

The spelling of 131013064427 in words is "one hundred thirty-one billion, thirteen million, sixty-four thousand, four hundred twenty-seven".