10131278263 has 4 divisors (see below), whose sum is σ = 10224225880. Its totient is φ = 10038330648.

The previous prime is 10131278221. The next prime is 10131278323. The reversal of 10131278263 is 36287213101.

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-10131278263 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 (10131278863) 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, 46473645 + ... + 46473862.

It is an arithmetic number, because the mean of its divisors is an integer number (2556056470).

Almost surely, 2^10131278263 is an apocalyptic number.

10131278263 is a deficient number, since it is larger than the sum of its proper divisors (92947617).

10131278263 is an equidigital number, since it uses as much as digits as its factorization.

10131278263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92947616.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 10131278263 in words is "ten billion, one hundred thirty-one million, two hundred seventy-eight thousand, two hundred sixty-three".