113551520233 has 4 divisors (see below), whose sum is σ = 113555981268. Its totient is φ = 113547059200.

The previous prime is 113551520209. The next prime is 113551520249. The reversal of 113551520233 is 332025155311.

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 93047571369 + 20503948864 = 305037^2 + 143192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113551520233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113551520195 and 113551520204.

It is not an unprimeable number, because it can be changed into a prime (113551520833) 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, 2192116 + ... + 2243317.

It is an arithmetic number, because the mean of its divisors is an integer number (28388995317).

Almost surely, 2^113551520233 is an apocalyptic number.

It is an amenable number.

113551520233 is a deficient number, since it is larger than the sum of its proper divisors (4461035).

113551520233 is an equidigital number, since it uses as much as digits as its factorization.

113551520233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461034.

The product of its (nonzero) digits is 13500, while the sum is 31.

Adding to 113551520233 its reverse (332025155311), we get a palindrome (445576675544).

The spelling of 113551520233 in words is "one hundred thirteen billion, five hundred fifty-one million, five hundred twenty thousand, two hundred thirty-three".