20271271330 has 32 divisors (see below), whose sum is σ = 37352638080. Its totient is φ = 7918252800.

The previous prime is 20271271219. The next prime is 20271271331. The reversal of 20271271330 is 3317217202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20271271331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24679 + ... + 202858.

It is an arithmetic number, because the mean of its divisors is an integer number (1167269940).

Almost surely, 2^20271271330 is an apocalyptic number.

20271271330 is a deficient number, since it is larger than the sum of its proper divisors (17081366750).

20271271330 is a wasteful number, since it uses less digits than its factorization.

20271271330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227754.

The product of its (nonzero) digits is 3528, while the sum is 28.

Adding to 20271271330 its reverse (3317217202), we get a palindrome (23588488532).

The spelling of 20271271330 in words is "twenty billion, two hundred seventy-one million, two hundred seventy-one thousand, three hundred thirty".