31132303213 has 16 divisors (see below), whose sum is σ = 35474774400. Its totient is φ = 27060828480.

The previous prime is 31132303207. The next prime is 31132303231. The reversal of 31132303213 is 31230323113.

It is a cyclic number.

It is not a de Polignac number, because 31132303213 - 2⁹ = 31132302701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31132303313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440898 + ... + 506611.

It is an arithmetic number, because the mean of its divisors is an integer number (2217173400).

Almost surely, 2^31132303213 is an apocalyptic number.

It is an amenable number.

31132303213 is a deficient number, since it is larger than the sum of its proper divisors (4342471187).

31132303213 is a wasteful number, since it uses less digits than its factorization.

31132303213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947652.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31132303213 its reverse (31230323113), we get a palindrome (62362626326).

The spelling of 31132303213 in words is "thirty-one billion, one hundred thirty-two million, three hundred three thousand, two hundred thirteen".