1012020210137 has 2 divisors, whose sum is σ = 1012020210138. Its totient is φ = 1012020210136.

The previous prime is 1012020210079. The next prime is 1012020210139. The reversal of 1012020210137 is 7310120202101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 742580316361 + 269439893776 = 861731^2 + 519076^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012020210137 - 2⁸ = 1012020209881 is a prime.

Together with 1012020210139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1012020210139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506010105068 + 506010105069.

It is an arithmetic number, because the mean of its divisors is an integer number (506010105069).

Almost surely, 2^{1012020210137} is an apocalyptic number.

It is an amenable number.

1012020210137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012020210137 is an equidigital number, since it uses as much as digits as its factorization.

1012020210137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 1012020210137 its reverse (7310120202101), we get a palindrome (8322140412238).

The spelling of 1012020210137 in words is "one trillion, twelve billion, twenty million, two hundred ten thousand, one hundred thirty-seven".