20023433429 has 2 divisors, whose sum is σ = 20023433430. Its totient is φ = 20023433428.

The previous prime is 20023433407. The next prime is 20023433483. The reversal of 20023433429 is 92433432002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16821571204 + 3201862225 = 129698^2 + 56585^2 .

It is a cyclic number.

It is not a de Polignac number, because 20023433429 - 2¹⁶ = 20023367893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20023433395 and 20023433404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20023433489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011716714 + 10011716715.

It is an arithmetic number, because the mean of its divisors is an integer number (10011716715).

Almost surely, 2^20023433429 is an apocalyptic number.

It is an amenable number.

20023433429 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023433429 is an equidigital number, since it uses as much as digits as its factorization.

20023433429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 32.

The spelling of 20023433429 in words is "twenty billion, twenty-three million, four hundred thirty-three thousand, four hundred twenty-nine".