20120332429 has 2 divisors, whose sum is σ = 20120332430. Its totient is φ = 20120332428.

The previous prime is 20120332391. The next prime is 20120332447. The reversal of 20120332429 is 92423302102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16945009929 + 3175322500 = 130173^2 + 56350^2 .

It is a cyclic number.

It is not a de Polignac number, because 20120332429 - 2⁷ = 20120332301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20120332397 and 20120332406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20120332459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060166214 + 10060166215.

It is an arithmetic number, because the mean of its divisors is an integer number (10060166215).

Almost surely, 2^20120332429 is an apocalyptic number.

It is an amenable number.

20120332429 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120332429 is an equidigital number, since it uses as much as digits as its factorization.

20120332429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 20120332429 in words is "twenty billion, one hundred twenty million, three hundred thirty-two thousand, four hundred twenty-nine".