1120720615720 has 32 divisors (see below), whose sum is σ = 2546587942920. Its totient is φ = 443849747200.

The previous prime is 1120720615631. The next prime is 1120720615753. The reversal of 1120720615720 is 275160270211.

It can be written as a sum of positive squares in 4 ways, for example, as 1051285203684 + 69435412036 = 1025322^2 + 263506^2 .

It is a super-2 number, since 2×1120720615720² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 138699007 + ... + 138707086.

Almost surely, 2^{1120720615720} is an apocalyptic number.

1120720615720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120720615720 is an abundant number, since it is smaller than the sum of its proper divisors (1425867327200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1120720615720 is a wasteful number, since it uses less digits than its factorization.

1120720615720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277406205 (or 277406201 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 34.

Adding to 1120720615720 its reverse (275160270211), we get a palindrome (1395880885931).

The spelling of 1120720615720 in words is "one trillion, one hundred twenty billion, seven hundred twenty million, six hundred fifteen thousand, seven hundred twenty".