1101202140 has 96 divisors (see below), whose sum is σ = 3177163584. Its totient is φ = 284774400.

The previous prime is 1101202139. The next prime is 1101202159. The reversal of 1101202140 is 412021011.

It is a happy number.

1101202140 is nontrivially palindromic in base 11.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 889602 + ... + 890838.

It is an arithmetic number, because the mean of its divisors is an integer number (33095454).

Almost surely, 2^1101202140 is an apocalyptic number.

1101202140 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 1101202140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1588581792).

1101202140 is an abundant number, since it is smaller than the sum of its proper divisors (2075961444).

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

1101202140 is a wasteful number, since it uses less digits than its factorization.

1101202140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1101202140 is about 33184.3658972113. The cubic root of 1101202140 is about 1032.6560225578.

Adding to 1101202140 its reverse (412021011), we get a palindrome (1513223151).

The spelling of 1101202140 in words is "one billion, one hundred one million, two hundred two thousand, one hundred forty".