20031022121230 has 128 divisors (see below), whose sum is σ = 38686796881920. Its totient is φ = 7445230692480.

The previous prime is 20031022121167. The next prime is 20031022121263. The reversal of 20031022121230 is 3212122013002.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 20031022121198 and 20031022121207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2934085077 + ... + 2934091903.

It is an arithmetic number, because the mean of its divisors is an integer number (302240600640).

Almost surely, 2^{20031022121230} is an apocalyptic number.

20031022121230 is a deficient number, since it is larger than the sum of its proper divisors (18655774760690).

20031022121230 is a wasteful number, since it uses less digits than its factorization.

20031022121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8014.

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

Adding to 20031022121230 its reverse (3212122013002), we get a palindrome (23243144134232).

The spelling of 20031022121230 in words is "twenty trillion, thirty-one billion, twenty-two million, one hundred twenty-one thousand, two hundred thirty".