12131457463 has 4 divisors (see below), whose sum is σ = 12136956480. Its totient is φ = 12125958448.

The previous prime is 12131457407. The next prime is 12131457491. The reversal of 12131457463 is 36475413121.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12131457463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131457493) 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, 2746198 + ... + 2750611.

It is an arithmetic number, because the mean of its divisors is an integer number (3034239120).

Almost surely, 2^12131457463 is an apocalyptic number.

12131457463 is a deficient number, since it is larger than the sum of its proper divisors (5499017).

12131457463 is an equidigital number, since it uses as much as digits as its factorization.

12131457463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5499016.

The product of its digits is 60480, while the sum is 37.

The spelling of 12131457463 in words is "twelve billion, one hundred thirty-one million, four hundred fifty-seven thousand, four hundred sixty-three".