1310231031 has 8 divisors (see below), whose sum is σ = 1749026160. Its totient is φ = 872461632.

The previous prime is 1310231003. The next prime is 1310231047. The reversal of 1310231031 is 1301320131.

1310231031 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1310231031 - 2¹³ = 1310222839 is a prime.

It is a super-2 number, since 2×1310231031² = 3433410709190645922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1310231031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310231081) 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, 253446 + ... + 258563.

It is an arithmetic number, because the mean of its divisors is an integer number (218628270).

Almost surely, 2^1310231031 is an apocalyptic number.

1310231031 is a deficient number, since it is larger than the sum of its proper divisors (438795129).

1310231031 is an equidigital number, since it uses as much as digits as its factorization.

1310231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512865.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1310231031 is about 36197.1135727699. The cubic root of 1310231031 is about 1094.2485008563.

Adding to 1310231031 its reverse (1301320131), we get a palindrome (2611551162).

The spelling of 1310231031 in words is "one billion, three hundred ten million, two hundred thirty-one thousand, thirty-one".