31340322321 has 64 divisors (see below), whose sum is σ = 52724514816. Its totient is φ = 16085664000.

The previous prime is 31340322319. The next prime is 31340322329. The reversal of 31340322321 is 12322304313.

It is not a de Polignac number, because 31340322321 - 2¹ = 31340322319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31340322291 and 31340322300.

It is not an unprimeable number, because it can be changed into a prime (31340322329) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14160811 + ... + 14163023.

It is an arithmetic number, because the mean of its divisors is an integer number (823820544).

Almost surely, 2^31340322321 is an apocalyptic number.

It is an amenable number.

31340322321 is a deficient number, since it is larger than the sum of its proper divisors (21384192495).

31340322321 is a wasteful number, since it uses less digits than its factorization.

31340322321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31340322321 its reverse (12322304313), we get a palindrome (43662626634).

The spelling of 31340322321 in words is "thirty-one billion, three hundred forty million, three hundred twenty-two thousand, three hundred twenty-one".