1101125551152 has 160 divisors (see below), whose sum is σ = 3197251077120. Its totient is φ = 323684085760.

The previous prime is 1101125551121. The next prime is 1101125551153. The reversal of 1101125551152 is 2511555211011.

It is not an unprimeable number, because it can be changed into a prime (1101125551153) 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, 2607874 + ... + 3000542.

It is an arithmetic number, because the mean of its divisors is an integer number (19982819232).

Almost surely, 2^{1101125551152} is an apocalyptic number.

1101125551152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101125551152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1598625538560).

1101125551152 is an abundant number, since it is smaller than the sum of its proper divisors (2096125525968).

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

1101125551152 is a wasteful number, since it uses less digits than its factorization.

1101125551152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392851 (or 392845 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 30.

The spelling of 1101125551152 in words is "one trillion, one hundred one billion, one hundred twenty-five million, five hundred fifty-one thousand, one hundred fifty-two".