31324112211 has 16 divisors (see below), whose sum is σ = 47742015488. Its totient is φ = 17895729600.

The previous prime is 31324112189. The next prime is 31324112227. The reversal of 31324112211 is 11221142313.

It is not a de Polignac number, because 31324112211 - 2¹⁵ = 31324079443 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 not an unprimeable number, because it can be changed into a prime (31324112411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52930 + ... + 255831.

It is an arithmetic number, because the mean of its divisors is an integer number (2983875968).

Almost surely, 2^31324112211 is an apocalyptic number.

31324112211 is a deficient number, since it is larger than the sum of its proper divisors (16417903277).

31324112211 is a wasteful number, since it uses less digits than its factorization.

31324112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313602.

The product of its digits is 288, while the sum is 21.

Adding to 31324112211 its reverse (11221142313), we get a palindrome (42545254524).

The spelling of 31324112211 in words is "thirty-one billion, three hundred twenty-four million, one hundred twelve thousand, two hundred eleven".