20203231210 has 16 divisors (see below), whose sum is σ = 36390200616. Its totient is φ = 8075873728.

The previous prime is 20203231177. The next prime is 20203231229. The reversal of 20203231210 is 1213230202.

It can be written as a sum of positive squares in 4 ways, for example, as 18284177961 + 1919053249 = 135219^2 + 43807^2 .

It is an unprimeable number.

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, 661669 + ... + 691528.

Almost surely, 2^20203231210 is an apocalyptic number.

20203231210 is a deficient number, since it is larger than the sum of its proper divisors (16186969406).

20203231210 is a wasteful number, since it uses less digits than its factorization.

20203231210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354697.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20203231210 its reverse (1213230202), we get a palindrome (21416461412).

The spelling of 20203231210 in words is "twenty billion, two hundred three million, two hundred thirty-one thousand, two hundred ten".