1121142561610 has 8 divisors (see below), whose sum is σ = 2018056610916. Its totient is φ = 448457024640.

The previous prime is 1121142561593. The next prime is 1121142561613. The reversal of 1121142561610 is 161652411211.

It can be written as a sum of positive squares in 2 ways, for example, as 1024870744881 + 96271816729 = 1012359^2 + 310277^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1121142561613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56057128071 + ... + 56057128090.

Almost surely, 2^{1121142561610} is an apocalyptic number.

1121142561610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121142561610 is a deficient number, since it is larger than the sum of its proper divisors (896914049306).

1121142561610 is a wasteful number, since it uses less digits than its factorization.

1121142561610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112114256168.

The product of its (nonzero) digits is 2880, while the sum is 31.

Adding to 1121142561610 its reverse (161652411211), we get a palindrome (1282794972821).

The spelling of 1121142561610 in words is "one trillion, one hundred twenty-one billion, one hundred forty-two million, five hundred sixty-one thousand, six hundred ten".