10203452729 has 2 divisors, whose sum is σ = 10203452730. Its totient is φ = 10203452728.

The previous prime is 10203452629. The next prime is 10203452731. The reversal of 10203452729 is 92725430201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8235199504 + 1968253225 = 90748^2 + 44365^2 .

It is an emirp because it is prime and its reverse (92725430201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10203452729 - 2¹⁶ = 10203387193 is a prime.

It is a super-2 number, since 2×10203452729² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 10203452731, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10203452759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101726364 + 5101726365.

It is an arithmetic number, because the mean of its divisors is an integer number (5101726365).

Almost surely, 2^10203452729 is an apocalyptic number.

It is an amenable number.

10203452729 is a deficient number, since it is larger than the sum of its proper divisors (1).

10203452729 is an equidigital number, since it uses as much as digits as its factorization.

10203452729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 10203452729 in words is "ten billion, two hundred three million, four hundred fifty-two thousand, seven hundred twenty-nine".