1000142102621 has 2 divisors, whose sum is σ = 1000142102622. Its totient is φ = 1000142102620.

The previous prime is 1000142102591. The next prime is 1000142102639. The reversal of 1000142102621 is 1262012410001.

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., 1000060000900 + 82101721 = 1000030^2 + 9061^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000142102621 - 2¹⁰ = 1000142101597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000142102593 and 1000142102602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000142102651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500071051310 + 500071051311.

It is an arithmetic number, because the mean of its divisors is an integer number (500071051311).

Almost surely, 2^{1000142102621} is an apocalyptic number.

It is an amenable number.

1000142102621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000142102621 is an equidigital number, since it uses as much as digits as its factorization.

1000142102621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1000142102621 its reverse (1262012410001), we get a palindrome (2262154512622).

The spelling of 1000142102621 in words is "one trillion, one hundred forty-two million, one hundred two thousand, six hundred twenty-one".