1120661111571 has 8 divisors (see below), whose sum is σ = 1496482215360. Its totient is φ = 745973707752.

The previous prime is 1120661111551. The next prime is 1120661111599. The reversal of 1120661111571 is 1751111660211.

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

It is not a de Polignac number, because 1120661111571 - 2⁷ = 1120661111443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1120661111551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283422685 + ... + 283426638.

It is an arithmetic number, because the mean of its divisors is an integer number (187060276920).

Almost surely, 2^{1120661111571} is an apocalyptic number.

1120661111571 is a deficient number, since it is larger than the sum of its proper divisors (375821103789).

1120661111571 is an equidigital number, since it uses as much as digits as its factorization.

1120661111571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566849985.

The product of its (nonzero) digits is 2520, while the sum is 33.

Adding to 1120661111571 its reverse (1751111660211), we get a palindrome (2871772771782).

The spelling of 1120661111571 in words is "one trillion, one hundred twenty billion, six hundred sixty-one million, one hundred eleven thousand, five hundred seventy-one".