10312011231 has 8 divisors (see below), whose sum is σ = 13752366720. Its totient is φ = 6873164952.

The previous prime is 10312011223. The next prime is 10312011239. The reversal of 10312011231 is 13211021301.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10312011223) and next prime (10312011239).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10312011231 - 2³ = 10312011223 is a prime.

It is a super-2 number, since 2×10312011231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10312011231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10312011239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361261 + ... + 388758.

It is an arithmetic number, because the mean of its divisors is an integer number (1719045840).

Almost surely, 2^10312011231 is an apocalyptic number.

10312011231 is a deficient number, since it is larger than the sum of its proper divisors (3440355489).

10312011231 is an equidigital number, since it uses as much as digits as its factorization.

10312011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754605.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10312011231 its reverse (13211021301), we get a palindrome (23523032532).

The spelling of 10312011231 in words is "ten billion, three hundred twelve million, eleven thousand, two hundred thirty-one".