1101204021013 has 2 divisors, whose sum is σ = 1101204021014. Its totient is φ = 1101204021012.

The previous prime is 1101204021007. The next prime is 1101204021059. The reversal of 1101204021013 is 3101204021011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 742807830769 + 358396190244 = 861863^2 + 598662^2 .

It is an emirp because it is prime and its reverse (3101204021011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101204021013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101204001013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550602010506 + 550602010507.

It is an arithmetic number, because the mean of its divisors is an integer number (550602010507).

Almost surely, 2^{1101204021013} is an apocalyptic number.

It is an amenable number.

1101204021013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101204021013 is an equidigital number, since it uses as much as digits as its factorization.

1101204021013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1101204021013 its reverse (3101204021011), we get a palindrome (4202408042024).

The spelling of 1101204021013 in words is "one trillion, one hundred one billion, two hundred four million, twenty-one thousand, thirteen".