31152301216 has 12 divisors (see below), whose sum is σ = 61331093082. Its totient is φ = 15576150592.

The previous prime is 31152301163. The next prime is 31152301237. The reversal of 31152301216 is 61210325113.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 31067587600 + 84713616 = 176260^2 + 9204^2 .

It is a super-3 number, since 3×31152301216³ (a number of 32 digits) contains 333 as substring.

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 as a sum of consecutive naturals, namely, 486754675 + ... + 486754738.

Almost surely, 2^31152301216 is an apocalyptic number.

It is an amenable number.

31152301216 is a deficient number, since it is larger than the sum of its proper divisors (30178791866).

31152301216 is an equidigital number, since it uses as much as digits as its factorization.

31152301216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973509423 (or 973509415 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 31152301216 its reverse (61210325113), we get a palindrome (92362626329).

The spelling of 31152301216 in words is "thirty-one billion, one hundred fifty-two million, three hundred one thousand, two hundred sixteen".