31344133145 has 8 divisors (see below), whose sum is σ = 40506264456. Its totient is φ = 23146436736.

The previous prime is 31344133127. The next prime is 31344133153. The reversal of 31344133145 is 54133144313.

It can be written as a sum of positive squares in 4 ways, for example, as 7315723024 + 24028410121 = 85532^2 + 155011^2 .

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 31344133145 - 2⁶ = 31344133081 is a prime.

It is a super-2 number, since 2×31344133145² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241108652 + ... + 241108781.

It is an arithmetic number, because the mean of its divisors is an integer number (5063283057).

Almost surely, 2^31344133145 is an apocalyptic number.

It is an amenable number.

31344133145 is a deficient number, since it is larger than the sum of its proper divisors (9162131311).

31344133145 is a wasteful number, since it uses less digits than its factorization.

31344133145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482217451.

The product of its digits is 25920, while the sum is 32.

Adding to 31344133145 its reverse (54133144313), we get a palindrome (85477277458).

The spelling of 31344133145 in words is "thirty-one billion, three hundred forty-four million, one hundred thirty-three thousand, one hundred forty-five".