1100120633645 has 16 divisors (see below), whose sum is σ = 1440253559232. Its totient is φ = 800034600960.

The previous prime is 1100120633641. The next prime is 1100120633681. The reversal of 1100120633645 is 5463360210011.

It is not a de Polignac number, because 1100120633645 - 2² = 1100120633641 is a prime.

It is a super-3 number, since 3×1100120633645³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100120633641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181274 + ... + 1494356.

It is an arithmetic number, because the mean of its divisors is an integer number (90015847452).

Almost surely, 2^{1100120633645} is an apocalyptic number.

It is an amenable number.

1100120633645 is a deficient number, since it is larger than the sum of its proper divisors (340132925587).

1100120633645 is a wasteful number, since it uses less digits than its factorization.

1100120633645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328332.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 1100120633645 its reverse (5463360210011), we get a palindrome (6563480843656).

The spelling of 1100120633645 in words is "one trillion, one hundred billion, one hundred twenty million, six hundred thirty-three thousand, six hundred forty-five".