20310531050 has 24 divisors (see below), whose sum is σ = 37797931596. Its totient is φ = 8119837440.

The previous prime is 20310531049. The next prime is 20310531053. The reversal of 20310531050 is 5013501302.

It can be written as a sum of positive squares in 6 ways, for example, as 6157383961 + 14153147089 = 78469^2 + 118967^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20310531053) 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 11 ways as a sum of consecutive naturals, for example, 14789 + ... + 202088.

Almost surely, 2^20310531050 is an apocalyptic number.

20310531050 is a deficient number, since it is larger than the sum of its proper divisors (17487400546).

20310531050 is a wasteful number, since it uses less digits than its factorization.

20310531050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218762 (or 218757 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The spelling of 20310531050 in words is "twenty billion, three hundred ten million, five hundred thirty-one thousand, fifty".