20430120131233 has 16 divisors (see below), whose sum is σ = 21148384561920. Its totient is φ = 19712778551424.

The previous prime is 20430120131219. The next prime is 20430120131269. The reversal of 20430120131233 is 33213102103402.

It is a cyclic number.

It is not a de Polignac number, because 20430120131233 - 2¹⁷ = 20430120000161 is a prime.

It is a super-2 number, since 2×20430120131233² (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 = 20430120131198 and 20430120131207.

It is not an unprimeable number, because it can be changed into a prime (20430120131033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286248810 + ... + 286320172.

It is an arithmetic number, because the mean of its divisors is an integer number (1321774035120).

Almost surely, 2^{20430120131233} is an apocalyptic number.

It is an amenable number.

20430120131233 is a deficient number, since it is larger than the sum of its proper divisors (718264430687).

20430120131233 is a wasteful number, since it uses less digits than its factorization.

20430120131233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77688.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20430120131233 its reverse (33213102103402), we get a palindrome (53643222234635).

The spelling of 20430120131233 in words is "twenty trillion, four hundred thirty billion, one hundred twenty million, one hundred thirty-one thousand, two hundred thirty-three".