113552454351221 has 4 divisors (see below), whose sum is σ = 113561723194944. Its totient is φ = 113543185507500.

The previous prime is 113552454351211. The next prime is 113552454351239. The reversal of 113552454351221 is 122153454255311.

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.

It is a cyclic number.

It is not a de Polignac number, because 113552454351221 - 2⁴² = 109154407840117 is a prime.

It is a super-2 number, since 2×113552454351221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113552454351211) 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, 4634403485 + ... + 4634427986.

It is an arithmetic number, because the mean of its divisors is an integer number (28390430798736).

Almost surely, 2^{113552454351221} is an apocalyptic number.

It is an amenable number.

113552454351221 is a deficient number, since it is larger than the sum of its proper divisors (9268843723).

113552454351221 is an equidigital number, since it uses as much as digits as its factorization.

113552454351221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9268843722.

The product of its digits is 720000, while the sum is 44.

The spelling of 113552454351221 in words is "one hundred thirteen trillion, five hundred fifty-two billion, four hundred fifty-four million, three hundred fifty-one thousand, two hundred twenty-one".