113404220121 has 8 divisors (see below), whose sum is σ = 156419614080. Its totient is φ = 72995819792.

The previous prime is 113404220107. The next prime is 113404220129. The reversal of 113404220121 is 121022404311.

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

It is a cyclic number.

It is not a de Polignac number, because 113404220121 - 2¹⁵ = 113404187353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113404220129) 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, 651748305 + ... + 651748478.

It is an arithmetic number, because the mean of its divisors is an integer number (19552451760).

Almost surely, 2^113404220121 is an apocalyptic number.

It is an amenable number.

113404220121 is a deficient number, since it is larger than the sum of its proper divisors (43015393959).

113404220121 is a wasteful number, since it uses less digits than its factorization.

113404220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303496815.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 113404220121 its reverse (121022404311), we get a palindrome (234426624432).

The spelling of 113404220121 in words is "one hundred thirteen billion, four hundred four million, two hundred twenty thousand, one hundred twenty-one".