20302131330012 has 48 divisors (see below), whose sum is σ = 54139273638912. Its totient is φ = 5800581441600.

The previous prime is 20302131330007. The next prime is 20302131330017. The reversal of 20302131330012 is 21003313120302.

It is an interprime number because it is at equal distance from previous prime (20302131330007) and next prime (20302131330017).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302131330017) 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, 22963762 + ... + 23831462.

It is an arithmetic number, because the mean of its divisors is an integer number (1127901534144).

Almost surely, 2^{20302131330012} is an apocalyptic number.

It is an amenable number.

20302131330012 is an abundant number, since it is smaller than the sum of its proper divisors (33837142308900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20302131330012 is a wasteful number, since it uses less digits than its factorization.

20302131330012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146258 (or 1146256 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20302131330012 its reverse (21003313120302), we get a palindrome (41305444450314).

The spelling of 20302131330012 in words is "twenty trillion, three hundred two billion, one hundred thirty-one million, three hundred thirty thousand, twelve".