113211553 has 8 divisors (see below), whose sum is σ = 139337408. Its totient is φ = 89573904.

The previous prime is 113211533. The next prime is 113211577. The reversal of 113211553 is 355112311.

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

It is not a de Polignac number, because 113211553 - 2⁵ = 113211521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113211533) 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, 621951 + ... + 622132.

It is an arithmetic number, because the mean of its divisors is an integer number (17417176).

Almost surely, 2^113211553 is an apocalyptic number.

113211553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

113211553 is a deficient number, since it is larger than the sum of its proper divisors (26125855).

113211553 is a wasteful number, since it uses less digits than its factorization.

113211553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244103.

The product of its digits is 450, while the sum is 22.

The square root of 113211553 is about 10640.0917759200. The cubic root of 113211553 is about 483.7603271726.

Adding to 113211553 its reverse (355112311), we get a palindrome (468323864).

The spelling of 113211553 in words is "one hundred thirteen million, two hundred eleven thousand, five hundred fifty-three".