20001031120230 has 32 divisors (see below), whose sum is σ = 49118811312384. Its totient is φ = 5209570896096.

The previous prime is 20001031120219. The next prime is 20001031120237. The reversal of 20001031120230 is 3202113010002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001031120237) 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, 7752336354 + ... + 7752338933.

It is an arithmetic number, because the mean of its divisors is an integer number (1534962853512).

Almost surely, 2^{20001031120230} is an apocalyptic number.

20001031120230 is an abundant number, since it is smaller than the sum of its proper divisors (29117780192154).

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

20001031120230 is a wasteful number, since it uses less digits than its factorization.

20001031120230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15504675340.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20001031120230 its reverse (3202113010002), we get a palindrome (23203144130232).

The spelling of 20001031120230 in words is "twenty trillion, one billion, thirty-one million, one hundred twenty thousand, two hundred thirty".