20302031431030 has 32 divisors (see below), whose sum is σ = 37532726880480. Its totient is φ = 7901035591680.

The previous prime is 20302031431021. The next prime is 20302031431037. The reversal of 20302031431030 is 3013413020302.

It is a junction number, because it is equal to n+sod(n) for n = 20302031430992 and 20302031431010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302031431037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9010966 + ... + 11036374.

It is an arithmetic number, because the mean of its divisors is an integer number (1172897715015).

Almost surely, 2^{20302031431030} is an apocalyptic number.

20302031431030 is a deficient number, since it is larger than the sum of its proper divisors (17230695449450).

20302031431030 is a wasteful number, since it uses less digits than its factorization.

20302031431030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052544.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20302031431030 its reverse (3013413020302), we get a palindrome (23315444451332).

The spelling of 20302031431030 in words is "twenty trillion, three hundred two billion, thirty-one million, four hundred thirty-one thousand, thirty".