20331331122131 has 8 divisors (see below), whose sum is σ = 21528488792160. Its totient is φ = 19134306453888.

The previous prime is 20331331122103. The next prime is 20331331122143. The reversal of 20331331122131 is 13122113313302.

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

It is not a de Polignac number, because 20331331122131 - 2¹⁴ = 20331331105747 is a prime.

It is a super-2 number, since 2×20331331122131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20331331122131.

It is not an unprimeable number, because it can be changed into a prime (20331331122031) 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, 32935631 + ... + 33547256.

It is an arithmetic number, because the mean of its divisors is an integer number (2691061099020).

Almost surely, 2^{20331331122131} is an apocalyptic number.

20331331122131 is a deficient number, since it is larger than the sum of its proper divisors (1197157670029).

20331331122131 is a wasteful number, since it uses less digits than its factorization.

20331331122131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66500893.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 20331331122131 its reverse (13122113313302), we get a palindrome (33453444435433).

The spelling of 20331331122131 in words is "twenty trillion, three hundred thirty-one billion, three hundred thirty-one million, one hundred twenty-two thousand, one hundred thirty-one".