1113220651 has 8 divisors (see below), whose sum is σ = 1165484880. Its totient is φ = 1061881632.

The previous prime is 1113220649. The next prime is 1113220657. The reversal of 1113220651 is 1560223111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1113220651 - 2¹ = 1113220649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113220657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228840 + ... + 233653.

It is an arithmetic number, because the mean of its divisors is an integer number (145685610).

Almost surely, 2^1113220651 is an apocalyptic number.

1113220651 is a deficient number, since it is larger than the sum of its proper divisors (52264229).

1113220651 is an equidigital number, since it uses as much as digits as its factorization.

1113220651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462605.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1113220651 is about 33364.9614266224. The cubic root of 1113220651 is about 1036.3992373495.

Adding to 1113220651 its reverse (1560223111), we get a palindrome (2673443762).

The spelling of 1113220651 in words is "one billion, one hundred thirteen million, two hundred twenty thousand, six hundred fifty-one".