31314424313 has 4 divisors (see below), whose sum is σ = 31436270580. Its totient is φ = 31192578048.

The previous prime is 31314424291. The next prime is 31314424331. The reversal of 31314424313 is 31342441313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31342441313 = 173 ⋅181170181.

It can be written as a sum of positive squares in 2 ways, for example, as 14380086889 + 16934337424 = 119917^2 + 130132^2 .

It is a cyclic number.

It is not a de Polignac number, because 31314424313 - 2¹⁸ = 31314162169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31314429313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60922748 + ... + 60923261.

It is an arithmetic number, because the mean of its divisors is an integer number (7859067645).

Almost surely, 2^31314424313 is an apocalyptic number.

It is an amenable number.

31314424313 is a deficient number, since it is larger than the sum of its proper divisors (121846267).

31314424313 is a wasteful number, since it uses less digits than its factorization.

31314424313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121846266.

The product of its digits is 10368, while the sum is 29.

Adding to 31314424313 its reverse (31342441313), we get a palindrome (62656865626).

The spelling of 31314424313 in words is "thirty-one billion, three hundred fourteen million, four hundred twenty-four thousand, three hundred thirteen".