31343613646601 has 4 divisors (see below), whose sum is σ = 31344469388100. Its totient is φ = 31342757905104.

The previous prime is 31343613646591. The next prime is 31343613646607. The reversal of 31343613646601 is 10664631634313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27591067398400 + 3752546248201 = 5252720^2 + 1937149^2 .

It is a cyclic number.

It is not a de Polignac number, because 31343613646601 - 2²² = 31343609452297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31343613646607) 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, 427815806 + ... + 427889063.

It is an arithmetic number, because the mean of its divisors is an integer number (7836117347025).

Almost surely, 2^{31343613646601} is an apocalyptic number.

It is an amenable number.

31343613646601 is a deficient number, since it is larger than the sum of its proper divisors (855741499).

31343613646601 is an equidigital number, since it uses as much as digits as its factorization.

31343613646601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855741498.

The product of its (nonzero) digits is 1679616, while the sum is 47.

The spelling of 31343613646601 in words is "thirty-one trillion, three hundred forty-three billion, six hundred thirteen million, six hundred forty-six thousand, six hundred one".