1120231240021 has 4 divisors (see below), whose sum is σ = 1158859903500. Its totient is φ = 1081602576544.

The previous prime is 1120231239979. The next prime is 1120231240067. The reversal of 1120231240021 is 1200421320211.

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 411201562500 + 709029677521 = 641250^2 + 842039^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120231240021 - 2¹¹ = 1120231237973 is a prime.

It is a super-2 number, since 2×1120231240021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120231240081) 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, 19314331696 + ... + 19314331753.

It is an arithmetic number, because the mean of its divisors is an integer number (289714975875).

Almost surely, 2^{1120231240021} is an apocalyptic number.

It is an amenable number.

1120231240021 is a deficient number, since it is larger than the sum of its proper divisors (38628663479).

1120231240021 is an equidigital number, since it uses as much as digits as its factorization.

1120231240021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38628663478.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1120231240021 its reverse (1200421320211), we get a palindrome (2320652560232).

The spelling of 1120231240021 in words is "one trillion, one hundred twenty billion, two hundred thirty-one million, two hundred forty thousand, twenty-one".