130631423563 has 4 divisors (see below), whose sum is σ = 135135955440. Its totient is φ = 126126891688.

The previous prime is 130631423537. The next prime is 130631423627. The reversal of 130631423563 is 365324136031.

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 130631423563 - 2¹³ = 130631415371 is a prime.

It is a super-2 number, since 2×130631423563² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130631423863) 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, 2252265895 + ... + 2252265952.

It is an arithmetic number, because the mean of its divisors is an integer number (33783988860).

Almost surely, 2^130631423563 is an apocalyptic number.

130631423563 is a deficient number, since it is larger than the sum of its proper divisors (4504531877).

130631423563 is an equidigital number, since it uses as much as digits as its factorization.

130631423563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4504531876.

The product of its (nonzero) digits is 116640, while the sum is 37.

Adding to 130631423563 its reverse (365324136031), we get a palindrome (495955559594).

The spelling of 130631423563 in words is "one hundred thirty billion, six hundred thirty-one million, four hundred twenty-three thousand, five hundred sixty-three".