1111020120001 has 8 divisors (see below), whose sum is σ = 1213244990208. Its totient is φ = 1008999090000.

The previous prime is 1111020119977. The next prime is 1111020120031. The reversal of 1111020120001 is 1000210201111.

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

It is not a de Polignac number, because 1111020120001 - 2²³ = 1111011731393 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 1111020120001.

It is not an unprimeable number, because it can be changed into a prime (1111020120031) 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, 50948650 + ... + 50970451.

It is an arithmetic number, because the mean of its divisors is an integer number (151655623776).

Almost surely, 2^{1111020120001} is an apocalyptic number.

1111020120001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111020120001 is a deficient number, since it is larger than the sum of its proper divisors (102224870207).

1111020120001 is a wasteful number, since it uses less digits than its factorization.

1111020120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101920103.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1111020120001 its reverse (1000210201111), we get a palindrome (2111230321112).

The spelling of 1111020120001 in words is "one trillion, one hundred eleven billion, twenty million, one hundred twenty thousand, one".