20311012302 has 16 divisors (see below), whose sum is σ = 46425171072. Its totient is φ = 5803146360.

The previous prime is 20311012283. The next prime is 20311012303. The reversal of 20311012302 is 20321011302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20311012303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241797724 + ... + 241797807.

It is an arithmetic number, because the mean of its divisors is an integer number (2901573192).

Almost surely, 2^20311012302 is an apocalyptic number.

20311012302 is an abundant number, since it is smaller than the sum of its proper divisors (26114158770).

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

20311012302 is a wasteful number, since it uses less digits than its factorization.

20311012302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483595543.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20311012302 its reverse (20321011302), we get a palindrome (40632023604).

The spelling of 20311012302 in words is "twenty billion, three hundred eleven million, twelve thousand, three hundred two".