31120130300200 has 24 divisors (see below), whose sum is σ = 72354302948430. Its totient is φ = 12448052120000.

The previous prime is 31120130300191. The next prime is 31120130300251. The reversal of 31120130300200 is 200303102113.

It can be written as a sum of positive squares in 3 ways, for example, as 30429499494436 + 690630805764 = 5516294^2 + 831042^2 .

It is a super-2 number, since 2×31120130300200² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77800325551 + ... + 77800325950.

Almost surely, 2^{31120130300200} is an apocalyptic number.

It is an amenable number.

31120130300200 is an abundant number, since it is smaller than the sum of its proper divisors (41234172648230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31120130300200 is a wasteful number, since it uses less digits than its factorization.

31120130300200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155600651517 (or 155600651508 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31120130300200 its reverse (200303102113), we get a palindrome (31320433402313).

The spelling of 31120130300200 in words is "thirty-one trillion, one hundred twenty billion, one hundred thirty million, three hundred thousand, two hundred".