20313221151 has 8 divisors (see below), whose sum is σ = 27102084480. Its totient is φ = 13533252632.

The previous prime is 20313221063. The next prime is 20313221177. The reversal of 20313221151 is 15112231302.

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

It is a cyclic number.

It is not a de Polignac number, because 20313221151 - 2⁷ = 20313221023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313221051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2218371 + ... + 2227508.

It is an arithmetic number, because the mean of its divisors is an integer number (3387760560).

Almost surely, 2^20313221151 is an apocalyptic number.

20313221151 is a deficient number, since it is larger than the sum of its proper divisors (6788863329).

20313221151 is a wasteful number, since it uses less digits than its factorization.

20313221151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4447405.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 20313221151 its reverse (15112231302), we get a palindrome (35425452453).

The spelling of 20313221151 in words is "twenty billion, three hundred thirteen million, two hundred twenty-one thousand, one hundred fifty-one".