1103520653 has 16 divisors (see below), whose sum is σ = 1143183360. Its totient is φ = 1064581056.

The previous prime is 1103520637. The next prime is 1103520707. The reversal of 1103520653 is 3560253011.

It is not a de Polignac number, because 1103520653 - 2⁴ = 1103520637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103520623) 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, 2167763 + ... + 2168271.

It is an arithmetic number, because the mean of its divisors is an integer number (71448960).

Almost surely, 2^1103520653 is an apocalyptic number.

It is an amenable number.

1103520653 is a deficient number, since it is larger than the sum of its proper divisors (39662707).

1103520653 is a wasteful number, since it uses less digits than its factorization.

1103520653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1103520653 is about 33219.2813438220. The cubic root of 1103520653 is about 1033.3802456561.

Adding to 1103520653 its reverse (3560253011), we get a palindrome (4663773664).

The spelling of 1103520653 in words is "one billion, one hundred three million, five hundred twenty thousand, six hundred fifty-three".