1113201651 has 4 divisors (see below), whose sum is σ = 1484268872. Its totient is φ = 742134432.

The previous prime is 1113201643. The next prime is 1113201703. The reversal of 1113201651 is 1561023111.

It is a happy number.

1113201651 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1113201651 - 2³ = 1113201643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113201611) 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, 185533606 + ... + 185533611.

It is an arithmetic number, because the mean of its divisors is an integer number (371067218).

Almost surely, 2^1113201651 is an apocalyptic number.

1113201651 is a deficient number, since it is larger than the sum of its proper divisors (371067221).

1113201651 is an equidigital number, since it uses as much as digits as its factorization.

1113201651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371067220.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 1113201651 is about 33364.6766955713. The cubic root of 1113201651 is about 1036.3933410349.

Adding to 1113201651 its reverse (1561023111), we get a palindrome (2674224762).

The spelling of 1113201651 in words is "one billion, one hundred thirteen million, two hundred one thousand, six hundred fifty-one".