1020001911013 has 2 divisors, whose sum is σ = 1020001911014. Its totient is φ = 1020001911012.

The previous prime is 1020001911007. The next prime is 1020001911037. The reversal of 1020001911013 is 3101191000201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1019732393124 + 269517889 = 1009818^2 + 16417^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020001911013 - 2¹⁷ = 1020001779941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020001911613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510000955506 + 510000955507.

It is an arithmetic number, because the mean of its divisors is an integer number (510000955507).

Almost surely, 2^{1020001911013} is an apocalyptic number.

It is an amenable number.

1020001911013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020001911013 is an equidigital number, since it uses as much as digits as its factorization.

1020001911013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 1020001911013 its reverse (3101191000201), we get a palindrome (4121192911214).

The spelling of 1020001911013 in words is "one trillion, twenty billion, one million, nine hundred eleven thousand, thirteen".