31345045244 has 12 divisors (see below), whose sum is σ = 55888807464. Its totient is φ = 15376814544.

The previous prime is 31345045223. The next prime is 31345045267. The reversal of 31345045244 is 44254054313.

It is a super-2 number, since 2×31345045244² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73926782 + ... + 73927205.

It is an arithmetic number, because the mean of its divisors is an integer number (4657400622).

Almost surely, 2^31345045244 is an apocalyptic number.

It is an amenable number.

31345045244 is a deficient number, since it is larger than the sum of its proper divisors (24543762220).

31345045244 is a wasteful number, since it uses less digits than its factorization.

31345045244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147854044 (or 147854042 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 31345045244 its reverse (44254054313), we get a palindrome (75599099557).

The spelling of 31345045244 in words is "thirty-one billion, three hundred forty-five million, forty-five thousand, two hundred forty-four".