31320053331 has 32 divisors (see below), whose sum is σ = 50964172800. Its totient is φ = 16722599040.

The previous prime is 31320053287. The next prime is 31320053333. The reversal of 31320053331 is 13335002313.

It is not a de Polignac number, because 31320053331 - 2¹⁴ = 31320036947 is a prime.

It is a super-2 number, since 2×31320053331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31320053333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 810616 + ... + 848373.

It is an arithmetic number, because the mean of its divisors is an integer number (1592630400).

Almost surely, 2^31320053331 is an apocalyptic number.

31320053331 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

31320053331 is a deficient number, since it is larger than the sum of its proper divisors (19644119469).

31320053331 is a wasteful number, since it uses less digits than its factorization.

31320053331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659059.

The product of its (nonzero) digits is 2430, while the sum is 24.

Adding to 31320053331 its reverse (13335002313), we get a palindrome (44655055644).

The spelling of 31320053331 in words is "thirty-one billion, three hundred twenty million, fifty-three thousand, three hundred thirty-one".