31012431303 has 32 divisors (see below), whose sum is σ = 49258729984. Its totient is φ = 16985054592.

The previous prime is 31012431277. The next prime is 31012431367. The reversal of 31012431303 is 30313421013.

It is not a de Polignac number, because 31012431303 - 2²⁸ = 30743995847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31012431303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012439303) 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 31 ways as a sum of consecutive naturals, for example, 245800 + ... + 349917.

It is an arithmetic number, because the mean of its divisors is an integer number (1539335312).

Almost surely, 2^31012431303 is an apocalyptic number.

31012431303 is a deficient number, since it is larger than the sum of its proper divisors (18246298681).

31012431303 is a wasteful number, since it uses less digits than its factorization.

31012431303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595831.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31012431303 its reverse (30313421013), we get a palindrome (61325852316).

The spelling of 31012431303 in words is "thirty-one billion, twelve million, four hundred thirty-one thousand, three hundred three".