20331121332031 has 8 divisors (see below), whose sum is σ = 20406853422000. Its totient is φ = 20255390366400.

The previous prime is 20331121332019. The next prime is 20331121332097. The reversal of 20331121332031 is 13023312113302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20331121332031 - 2¹⁵ = 20331121299263 is a prime.

It is a super-2 number, since 2×20331121332031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20331121331987 and 20331121332005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331121332631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59830756 + ... + 60169606.

It is an arithmetic number, because the mean of its divisors is an integer number (2550856677750).

Almost surely, 2^{20331121332031} is an apocalyptic number.

20331121332031 is a deficient number, since it is larger than the sum of its proper divisors (75732089969).

20331121332031 is a wasteful number, since it uses less digits than its factorization.

20331121332031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562169.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 20331121332031 its reverse (13023312113302), we get a palindrome (33354433445333).

The spelling of 20331121332031 in words is "twenty trillion, three hundred thirty-one billion, one hundred twenty-one million, three hundred thirty-two thousand, thirty-one".