31323441453613 has 4 divisors (see below), whose sum is σ = 31325451572608. Its totient is φ = 31321431334620.

The previous prime is 31323441453593. The next prime is 31323441453631. The reversal of 31323441453613 is 31635414432313.

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 31323441453613 - 2⁴¹ = 29124418198061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31323441453613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323441753613) 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, 1005036123 + ... + 1005067288.

It is an arithmetic number, because the mean of its divisors is an integer number (7831362893152).

Almost surely, 2^{31323441453613} is an apocalyptic number.

It is an amenable number.

31323441453613 is a deficient number, since it is larger than the sum of its proper divisors (2010118995).

31323441453613 is a wasteful number, since it uses less digits than its factorization.

31323441453613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010118994.

The product of its digits is 933120, while the sum is 43.

Adding to 31323441453613 its reverse (31635414432313), we get a palindrome (62958855885926).

The spelling of 31323441453613 in words is "thirty-one trillion, three hundred twenty-three billion, four hundred forty-one million, four hundred fifty-three thousand, six hundred thirteen".