1120020021123 has 4 divisors (see below), whose sum is σ = 1493360028168. Its totient is φ = 746680014080.

The previous prime is 1120020021119. The next prime is 1120020021163. The reversal of 1120020021123 is 3211200200211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1120020021123 - 2² = 1120020021119 is a prime.

It is a super-2 number, since 2×1120020021123² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1120020021163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186670003518 + ... + 186670003523.

It is an arithmetic number, because the mean of its divisors is an integer number (373340007042).

Almost surely, 2^{1120020021123} is an apocalyptic number.

1120020021123 is a deficient number, since it is larger than the sum of its proper divisors (373340007045).

1120020021123 is an equidigital number, since it uses as much as digits as its factorization.

1120020021123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373340007044.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1120020021123 its reverse (3211200200211), we get a palindrome (4331220221334).

The spelling of 1120020021123 in words is "one trillion, one hundred twenty billion, twenty million, twenty-one thousand, one hundred twenty-three".