20431430210 has 16 divisors (see below), whose sum is σ = 36784924416. Its totient is φ = 8170716528.

The previous prime is 20431430203. The next prime is 20431430213. The reversal of 20431430210 is 1203413402.

It is a super-2 number, since 2×20431430210² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20431430213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185252 + ... + 274191.

It is an arithmetic number, because the mean of its divisors is an integer number (2299057776).

Almost surely, 2^20431430210 is an apocalyptic number.

20431430210 is a deficient number, since it is larger than the sum of its proper divisors (16353494206).

20431430210 is a wasteful number, since it uses less digits than its factorization.

20431430210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463897.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20431430210 its reverse (1203413402), we get a palindrome (21634843612).

The spelling of 20431430210 in words is "twenty billion, four hundred thirty-one million, four hundred thirty thousand, two hundred ten".