113540330001221 has 4 divisors (see below), whose sum is σ = 115234961792352. Its totient is φ = 111845698210092.

The previous prime is 113540330001167. The next prime is 113540330001223. The reversal of 113540330001221 is 122100033045311.

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 a de Polignac number, because none of the positive numbers 2^k-113540330001221 is a prime.

It is a super-2 number, since 2×113540330001221² (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 (113540330001223) 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, 847315895465 + ... + 847315895598.

It is an arithmetic number, because the mean of its divisors is an integer number (28808740448088).

Almost surely, 2^{113540330001221} is an apocalyptic number.

It is an amenable number.

113540330001221 is a deficient number, since it is larger than the sum of its proper divisors (1694631791131).

113540330001221 is an equidigital number, since it uses as much as digits as its factorization.

113540330001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694631791130.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 113540330001221 its reverse (122100033045311), we get a palindrome (235640363046532).

The spelling of 113540330001221 in words is "one hundred thirteen trillion, five hundred forty billion, three hundred thirty million, one thousand, two hundred twenty-one".