20443161029 has 2 divisors, whose sum is σ = 20443161030. Its totient is φ = 20443161028.

The previous prime is 20443160999. The next prime is 20443161041. The reversal of 20443161029 is 92016134402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17803564900 + 2639596129 = 133430^2 + 51377^2 .

It is a cyclic number.

It is not a de Polignac number, because 20443161029 - 2²⁸ = 20174725573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20443160986 and 20443161004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20443161059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10221580514 + 10221580515.

It is an arithmetic number, because the mean of its divisors is an integer number (10221580515).

Almost surely, 2^20443161029 is an apocalyptic number.

It is an amenable number.

20443161029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20443161029 is an equidigital number, since it uses as much as digits as its factorization.

20443161029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 20443161029 in words is "twenty billion, four hundred forty-three million, one hundred sixty-one thousand, twenty-nine".