10312531243 has 4 divisors (see below), whose sum is σ = 11785750000. Its totient is φ = 8839312488.

The previous prime is 10312531199. The next prime is 10312531247. The reversal of 10312531243 is 34213521301.

It is a happy number.

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 10312531243 - 2¹⁷ = 10312400171 is a prime.

It is a super-2 number, since 2×10312531243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10312531247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 736609368 + ... + 736609381.

It is an arithmetic number, because the mean of its divisors is an integer number (2946437500).

Almost surely, 2^10312531243 is an apocalyptic number.

10312531243 is a deficient number, since it is larger than the sum of its proper divisors (1473218757).

10312531243 is an equidigital number, since it uses as much as digits as its factorization.

10312531243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473218756.

The product of its (nonzero) digits is 2160, while the sum is 25.

The spelling of 10312531243 in words is "ten billion, three hundred twelve million, five hundred thirty-one thousand, two hundred forty-three".