311421545252 has 12 divisors (see below), whose sum is σ = 545021685936. Its totient is φ = 155701063560.

The previous prime is 311421545243. The next prime is 311421545263. The reversal of 311421545252 is 252545124113.

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, 2354858 + ... + 2483585.

It is an arithmetic number, because the mean of its divisors is an integer number (45418473828).

Almost surely, 2^311421545252 is an apocalyptic number.

It is an amenable number.

311421545252 is a deficient number, since it is larger than the sum of its proper divisors (233600140684).

311421545252 is a wasteful number, since it uses less digits than its factorization.

311421545252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854538 (or 4854536 counting only the distinct ones).

The product of its digits is 48000, while the sum is 35.

Adding to 311421545252 its reverse (252545124113), we get a palindrome (563966669365).

The spelling of 311421545252 in words is "three hundred eleven billion, four hundred twenty-one million, five hundred forty-five thousand, two hundred fifty-two".