1310021029 has 2 divisors, whose sum is σ = 1310021030. Its totient is φ = 1310021028.

The previous prime is 1310021021. The next prime is 1310021039. The reversal of 1310021029 is 9201200131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1243972900 + 66048129 = 35270^2 + 8127^2 .

It is an emirp because it is prime and its reverse (9201200131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1310021029 - 2³ = 1310021021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1310020997 and 1310021015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310021021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655010514 + 655010515.

It is an arithmetic number, because the mean of its divisors is an integer number (655010515).

Almost surely, 2^1310021029 is an apocalyptic number.

It is an amenable number.

1310021029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310021029 is an equidigital number, since it uses as much as digits as its factorization.

1310021029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1310021029 is about 36194.2126451177. The cubic root of 1310021029 is about 1094.1900361920.

The spelling of 1310021029 in words is "one billion, three hundred ten million, twenty-one thousand, twenty-nine".