1121012020111 has 8 divisors (see below), whose sum is σ = 1136747147760. Its totient is φ = 1105329963072.

The previous prime is 1121012020099. The next prime is 1121012020133. The reversal of 1121012020111 is 1110202101211.

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 1121012020111 - 2³⁷ = 983573066639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121012020091 and 1121012020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121012020151) 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, 13225110 + ... + 13309603.

It is an arithmetic number, because the mean of its divisors is an integer number (142093393470).

Almost surely, 2^{1121012020111} is an apocalyptic number.

1121012020111 is a deficient number, since it is larger than the sum of its proper divisors (15735127649).

1121012020111 is an equidigital number, since it uses as much as digits as its factorization.

1121012020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26535305.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1121012020111 its reverse (1110202101211), we get a palindrome (2231214121322).

The spelling of 1121012020111 in words is "one trillion, one hundred twenty-one billion, twelve million, twenty thousand, one hundred eleven".