20130233340431 has 2 divisors, whose sum is σ = 20130233340432. Its totient is φ = 20130233340430.

The previous prime is 20130233340407. The next prime is 20130233340487. The reversal of 20130233340431 is 13404333203102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20130233340431 - 2¹⁰ = 20130233339407 is a prime.

It is a super-2 number, since 2×20130233340431² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20130233340394 and 20130233340403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20130233340401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065116670215 + 10065116670216.

It is an arithmetic number, because the mean of its divisors is an integer number (10065116670216).

Almost surely, 2^{20130233340431} is an apocalyptic number.

20130233340431 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130233340431 is an equidigital number, since it uses as much as digits as its factorization.

20130233340431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 20130233340431 its reverse (13404333203102), we get a palindrome (33534566543533).

The spelling of 20130233340431 in words is "twenty trillion, one hundred thirty billion, two hundred thirty-three million, three hundred forty thousand, four hundred thirty-one".