20330224131 has 16 divisors (see below), whose sum is σ = 30981761024. Its totient is φ = 11616381504.

The previous prime is 20330224099. The next prime is 20330224171. The reversal of 20330224131 is 13142203302.

It is not a de Polignac number, because 20330224131 - 2⁵ = 20330224099 is a prime.

It is a super-2 number, since 2×20330224131² (a number of 21 digits) contains 22 as substring.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20330224098 and 20330224107.

It is not an unprimeable number, because it can be changed into a prime (20330224171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326871 + ... + 384063.

It is an arithmetic number, because the mean of its divisors is an integer number (1936360064).

Almost surely, 2^20330224131 is an apocalyptic number.

20330224131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20330224131 is a deficient number, since it is larger than the sum of its proper divisors (10651536893).

20330224131 is a wasteful number, since it uses less digits than its factorization.

20330224131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74130.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20330224131 its reverse (13142203302), we get a palindrome (33472427433).

The spelling of 20330224131 in words is "twenty billion, three hundred thirty million, two hundred twenty-four thousand, one hundred thirty-one".