31421434313 has 8 divisors (see below), whose sum is σ = 31498779840. Its totient is φ = 31344142320.

The previous prime is 31421434309. The next prime is 31421434321. The reversal of 31421434313 is 31343412413.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31421434313 - 2² = 31421434309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31421434393) 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 7 ways as a sum of consecutive naturals, for example, 1323098 + ... + 1346636.

It is an arithmetic number, because the mean of its divisors is an integer number (3937347480).

Almost surely, 2^31421434313 is an apocalyptic number.

It is an amenable number.

31421434313 is a deficient number, since it is larger than the sum of its proper divisors (77345527).

31421434313 is a wasteful number, since it uses less digits than its factorization.

31421434313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26767.

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

Adding to 31421434313 its reverse (31343412413), we get a palindrome (62764846726).

The spelling of 31421434313 in words is "thirty-one billion, four hundred twenty-one million, four hundred thirty-four thousand, three hundred thirteen".