1040202123137 has 2 divisors, whose sum is σ = 1040202123138. Its totient is φ = 1040202123136.

The previous prime is 1040202123127. The next prime is 1040202123229. The reversal of 1040202123137 is 7313212020401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 907058140816 + 133143982321 = 952396^2 + 364889^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040202123137 - 2²⁴ = 1040185345921 is a prime.

It is not a weakly prime, because it can be changed into another prime (1040202123127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520101061568 + 520101061569.

It is an arithmetic number, because the mean of its divisors is an integer number (520101061569).

Almost surely, 2^{1040202123137} is an apocalyptic number.

It is an amenable number.

1040202123137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040202123137 is an equidigital number, since it uses as much as digits as its factorization.

1040202123137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 1040202123137 its reverse (7313212020401), we get a palindrome (8353414143538).

The spelling of 1040202123137 in words is "one trillion, forty billion, two hundred two million, one hundred twenty-three thousand, one hundred thirty-seven".