1021103120011 has 8 divisors (see below), whose sum is σ = 1099839878480. Its totient is φ = 942393556512.

The previous prime is 1021103119963. The next prime is 1021103120017. The reversal of 1021103120011 is 1100213011201.

It is a happy number.

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 1021103120011 - 2⁹ = 1021103119499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021103119973 and 1021103120000.

It is not an unprimeable number, because it can be changed into a prime (1021103120017) 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, 6720720 + ... + 6870973.

It is an arithmetic number, because the mean of its divisors is an integer number (137479984810).

Almost surely, 2^{1021103120011} is an apocalyptic number.

1021103120011 is a deficient number, since it is larger than the sum of its proper divisors (78736758469).

1021103120011 is a wasteful number, since it uses less digits than its factorization.

1021103120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13597485.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1021103120011 its reverse (1100213011201), we get a palindrome (2121316131212).

The spelling of 1021103120011 in words is "one trillion, twenty-one billion, one hundred three million, one hundred twenty thousand, eleven".