20431210021030 has 32 divisors (see below), whose sum is σ = 38965669716096. Its totient is φ = 7686576897024.

The previous prime is 20431210020959. The next prime is 20431210021063. The reversal of 20431210021030 is 3012001213402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20431210020989 and 20431210021007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40158639 + ... + 40664218.

It is an arithmetic number, because the mean of its divisors is an integer number (1217677178628).

Almost surely, 2^{20431210021030} is an apocalyptic number.

20431210021030 is a deficient number, since it is larger than the sum of its proper divisors (18534459695066).

20431210021030 is a wasteful number, since it uses less digits than its factorization.

20431210021030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80824368.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20431210021030 its reverse (3012001213402), we get a palindrome (23443211234432).

The spelling of 20431210021030 in words is "twenty trillion, four hundred thirty-one billion, two hundred ten million, twenty-one thousand, thirty".