1011211120013 has 8 divisors (see below), whose sum is σ = 1013178544536. Its totient is φ = 1009244059200.

The previous prime is 1011211119959. The next prime is 1011211120061. The reversal of 1011211120013 is 3100211121101.

It can be written as a sum of positive squares in 4 ways, for example, as 35616370729 + 975594749284 = 188723^2 + 987722^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011211120013 - 2¹² = 1011211115917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011211120013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011211420013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5851223 + ... + 6021563.

It is an arithmetic number, because the mean of its divisors is an integer number (126647318067).

Almost surely, 2^{1011211120013} is an apocalyptic number.

It is an amenable number.

1011211120013 is a deficient number, since it is larger than the sum of its proper divisors (1967424523).

1011211120013 is a wasteful number, since it uses less digits than its factorization.

1011211120013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181855.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1011211120013 its reverse (3100211121101), we get a palindrome (4111422241114).

The spelling of 1011211120013 in words is "one trillion, eleven billion, two hundred eleven million, one hundred twenty thousand, thirteen".