1101342120 has 128 divisors (see below), whose sum is σ = 3513196800. Its totient is φ = 275585024.

The previous prime is 1101342107. The next prime is 1101342149. The reversal of 1101342120 is 212431011.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1101342120.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142516 + ... + 150044.

It is an arithmetic number, because the mean of its divisors is an integer number (27446850).

Almost surely, 2^1101342120 is an apocalyptic number.

1101342120 is a gapful number since it is divisible by the number (10) 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 1101342120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1756598400).

1101342120 is an abundant number, since it is smaller than the sum of its proper divisors (2411854680).

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

1101342120 is a wasteful number, since it uses less digits than its factorization.

1101342120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7619 (or 7615 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1101342120 is about 33186.4749559214. The cubic root of 1101342120 is about 1032.6997762764.

Adding to 1101342120 its reverse (212431011), we get a palindrome (1313773131).

The spelling of 1101342120 in words is "one billion, one hundred one million, three hundred forty-two thousand, one hundred twenty".