31421410613 has 4 divisors (see below), whose sum is σ = 31426485600. Its totient is φ = 31416335628.

The previous prime is 31421410589. The next prime is 31421410627. The reversal of 31421410613 is 31601412413.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31421410613 - 2⁶ = 31421410549 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 (31421410633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2528195 + ... + 2540592.

It is an arithmetic number, because the mean of its divisors is an integer number (7856621400).

Almost surely, 2^31421410613 is an apocalyptic number.

It is an amenable number.

31421410613 is a deficient number, since it is larger than the sum of its proper divisors (5074987).

31421410613 is an equidigital number, since it uses as much as digits as its factorization.

31421410613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5074986.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 31421410613 in words is "thirty-one billion, four hundred twenty-one million, four hundred ten thousand, six hundred thirteen".