20331434312429 has 2 divisors, whose sum is σ = 20331434312430. Its totient is φ = 20331434312428.

The previous prime is 20331434312417. The next prime is 20331434312459. The reversal of 20331434312429 is 92421343413302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18531001705225 + 1800432607204 = 4304765^2 + 1341802^2 .

It is a cyclic number.

It is not a de Polignac number, because 20331434312429 - 2¹² = 20331434308333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20331434312459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165717156214 + 10165717156215.

It is an arithmetic number, because the mean of its divisors is an integer number (10165717156215).

Almost surely, 2^{20331434312429} is an apocalyptic number.

It is an amenable number.

20331434312429 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331434312429 is an equidigital number, since it uses as much as digits as its factorization.

20331434312429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 41.

The spelling of 20331434312429 in words is "twenty trillion, three hundred thirty-one billion, four hundred thirty-four million, three hundred twelve thousand, four hundred twenty-nine".