113555221433 has 4 divisors (see below), whose sum is σ = 113556304128. Its totient is φ = 113554138740.

The previous prime is 113555221411. The next prime is 113555221459. The reversal of 113555221433 is 334122555311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 334122555311 = 32611 ⋅10245701.

It is a cyclic number.

It is not a de Polignac number, because 113555221433 - 2¹⁰ = 113555220409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113555221393 and 113555221402.

It is not an unprimeable number, because it can be changed into a prime (113555221463) 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, 364841 + ... + 600182.

It is an arithmetic number, because the mean of its divisors is an integer number (28389076032).

Almost surely, 2^113555221433 is an apocalyptic number.

It is an amenable number.

113555221433 is a deficient number, since it is larger than the sum of its proper divisors (1082695).

113555221433 is an equidigital number, since it uses as much as digits as its factorization.

113555221433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082694.

The product of its digits is 54000, while the sum is 35.

Adding to 113555221433 its reverse (334122555311), we get a palindrome (447677776744).

The spelling of 113555221433 in words is "one hundred thirteen billion, five hundred fifty-five million, two hundred twenty-one thousand, four hundred thirty-three".