20430333131 has 8 divisors (see below), whose sum is σ = 22005155424. Its totient is φ = 18855976320.

The previous prime is 20430333109. The next prime is 20430333137. The reversal of 20430333131 is 13133303402.

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 20430333131 - 2¹⁴ = 20430316747 is a prime.

It is a super-2 number, since 2×20430333131² (a number of 21 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 = 20430333097 and 20430333106.

It is not an unprimeable number, because it can be changed into a prime (20430333137) 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 7 ways as a sum of consecutive naturals, for example, 22391 + ... + 203376.

It is an arithmetic number, because the mean of its divisors is an integer number (2750644428).

Almost surely, 2^20430333131 is an apocalyptic number.

20430333131 is a deficient number, since it is larger than the sum of its proper divisors (1574822293).

20430333131 is a wasteful number, since it uses less digits than its factorization.

20430333131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232741.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 20430333131 its reverse (13133303402), we get a palindrome (33563636533).

The spelling of 20430333131 in words is "twenty billion, four hundred thirty million, three hundred thirty-three thousand, one hundred thirty-one".