1156231442120 has 16 divisors (see below), whose sum is σ = 2601520744860. Its totient is φ = 462492576832.

The previous prime is 1156231442117. The next prime is 1156231442147. The reversal of 1156231442120 is 212441326511.

It can be written as a sum of positive squares in 2 ways, for example, as 1150818308644 + 5413133476 = 1072762^2 + 73574^2 .

It is a super-2 number, since 2×1156231442120² (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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14452892987 + ... + 14452893066.

Almost surely, 2^{1156231442120} is an apocalyptic number.

1156231442120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1156231442120 is an abundant number, since it is smaller than the sum of its proper divisors (1445289302740).

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

1156231442120 is a wasteful number, since it uses less digits than its factorization.

1156231442120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28905786064 (or 28905786060 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 1156231442120 its reverse (212441326511), we get a palindrome (1368672768631).

The spelling of 1156231442120 in words is "one trillion, one hundred fifty-six billion, two hundred thirty-one million, four hundred forty-two thousand, one hundred twenty".