1101111147969 has 32 divisors (see below), whose sum is σ = 1712353171200. Its totient is φ = 629122951296.

The previous prime is 1101111147923. The next prime is 1101111147991. The reversal of 1101111147969 is 9697411111011.

It is not a de Polignac number, because 1101111147969 - 2²⁰ = 1101110099393 is a prime.

It is a super-2 number, since 2×1101111147969² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1101111147969.

It is not an unprimeable number, because it can be changed into a prime (1101111147569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8157859 + ... + 8291735.

It is an arithmetic number, because the mean of its divisors is an integer number (53511036600).

Almost surely, 2^{1101111147969} is an apocalyptic number.

It is an amenable number.

1101111147969 is a deficient number, since it is larger than the sum of its proper divisors (611242023231).

1101111147969 is an equidigital number, since it uses as much as digits as its factorization.

1101111147969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141894 (or 141880 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 42.

The spelling of 1101111147969 in words is "one trillion, one hundred one billion, one hundred eleven million, one hundred forty-seven thousand, nine hundred sixty-nine".