207271311290 has 8 divisors (see below), whose sum is σ = 373088360340. Its totient is φ = 82908524512.

The previous prime is 207271311281. The next prime is 207271311361. The reversal of 207271311290 is 92113172702.

It is a happy number.

207271311290 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 206789377081 + 481934209 = 454741^2 + 21953^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×207271311290² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 207271311290.

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, 10363565555 + ... + 10363565574.

Almost surely, 2^207271311290 is an apocalyptic number.

207271311290 is a deficient number, since it is larger than the sum of its proper divisors (165817049050).

207271311290 is a wasteful number, since it uses less digits than its factorization.

207271311290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20727131136.

The product of its (nonzero) digits is 10584, while the sum is 35.

Adding to 207271311290 its reverse (92113172702), we get a palindrome (299384483992).

The spelling of 207271311290 in words is "two hundred seven billion, two hundred seventy-one million, three hundred eleven thousand, two hundred ninety".