1020131255417 has 2 divisors, whose sum is σ = 1020131255418. Its totient is φ = 1020131255416.

The previous prime is 1020131255327. The next prime is 1020131255477. The reversal of 1020131255417 is 7145521310201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 830265393721 + 189865861696 = 911189^2 + 435736^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020131255417 - 2¹⁶ = 1020131189881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020131255477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510065627708 + 510065627709.

It is an arithmetic number, because the mean of its divisors is an integer number (510065627709).

Almost surely, 2^{1020131255417} is an apocalyptic number.

It is an amenable number.

1020131255417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020131255417 is an equidigital number, since it uses as much as digits as its factorization.

1020131255417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 32.

Adding to 1020131255417 its reverse (7145521310201), we get a palindrome (8165652565618).

The spelling of 1020131255417 in words is "one trillion, twenty billion, one hundred thirty-one million, two hundred fifty-five thousand, four hundred seventeen".