1100013253 has 4 divisors (see below), whose sum is σ = 1100686860. Its totient is φ = 1099339648.

The previous prime is 1100013241. The next prime is 1100013319. The reversal of 1100013253 is 3523100011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 527942529 + 572070724 = 22977^2 + 23918^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100013253 - 2²¹ = 1097916101 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 (1100013223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334348 + ... + 337621.

It is an arithmetic number, because the mean of its divisors is an integer number (275171715).

Almost surely, 2^1100013253 is an apocalyptic number.

It is an amenable number.

1100013253 is a deficient number, since it is larger than the sum of its proper divisors (673607).

1100013253 is an equidigital number, since it uses as much as digits as its factorization.

1100013253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673606.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1100013253 is about 33166.4476994447. The cubic root of 1100013253 is about 1032.2842611392.

Adding to 1100013253 its reverse (3523100011), we get a palindrome (4623113264).

The spelling of 1100013253 in words is "one billion, one hundred million, thirteen thousand, two hundred fifty-three".