20311310002 has 8 divisors (see below), whose sum is σ = 30575389212. Its totient is φ = 10119513600.

The previous prime is 20311309981. The next prime is 20311310009. The reversal of 20311310002 is 20001311302.

It can be written as a sum of positive squares in 2 ways, for example, as 19911749881 + 399560121 = 141109^2 + 19989^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20311310009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18069999 + ... + 18071122.

Almost surely, 2^20311310002 is an apocalyptic number.

20311310002 is a deficient number, since it is larger than the sum of its proper divisors (10264079210).

20311310002 is a wasteful number, since it uses less digits than its factorization.

20311310002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36141404.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20311310002 its reverse (20001311302), we get a palindrome (40312621304).

The spelling of 20311310002 in words is "twenty billion, three hundred eleven million, three hundred ten thousand, two".