1103533140 has 192 divisors, whose sum is σ = 3301191936. Its totient is φ = 275079168.

The previous prime is 1103533139. The next prime is 1103533141. The reversal of 1103533140 is 413353011.

It is an interprime number because it is at equal distance from previous prime (1103533139) and next prime (1103533141).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103533141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9765724 + ... + 9765836.

It is an arithmetic number, because the mean of its divisors is an integer number (17193708).

Almost surely, 2^1103533140 is an apocalyptic number.

1103533140 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 1103533140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1650595968).

1103533140 is an abundant number, since it is smaller than the sum of its proper divisors (2197658796).

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

1103533140 is a wasteful number, since it uses less digits than its factorization.

1103533140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1103533140 is about 33219.4692913659. The cubic root of 1103533140 is about 1033.3841434144.

Adding to 1103533140 its reverse (413353011), we get a palindrome (1516886151).

The spelling of 1103533140 in words is "one billion, one hundred three million, five hundred thirty-three thousand, one hundred forty".