1120120310021 has 4 divisors (see below), whose sum is σ = 1121226056652. Its totient is φ = 1119014563392.

The previous prime is 1120120310011. The next prime is 1120120310027. The reversal of 1120120310021 is 1200130210211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 204520113121 + 915600196900 = 452239^2 + 956870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120120310021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120120309978 and 1120120310005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120120310027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552871796 + ... + 552873821.

It is an arithmetic number, because the mean of its divisors is an integer number (280306514163).

Almost surely, 2^{1120120310021} is an apocalyptic number.

It is an amenable number.

1120120310021 is a deficient number, since it is larger than the sum of its proper divisors (1105746631).

1120120310021 is a wasteful number, since it uses less digits than its factorization.

1120120310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105746630.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1120120310021 its reverse (1200130210211), we get a palindrome (2320250520232).

The spelling of 1120120310021 in words is "one trillion, one hundred twenty billion, one hundred twenty million, three hundred ten thousand, twenty-one".