113003211231221 has 16 divisors (see below), whose sum is σ = 116979742978560. Its totient is φ = 109032016121280.

The previous prime is 113003211231179. The next prime is 113003211231223. The reversal of 113003211231221 is 122132112300311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 113003211231221 - 2¹⁰ = 113003211230197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113003211231223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 560734286 + ... + 560935776.

It is an arithmetic number, because the mean of its divisors is an integer number (7311233936160).

Almost surely, 2^{113003211231221} is an apocalyptic number.

It is an amenable number.

113003211231221 is a deficient number, since it is larger than the sum of its proper divisors (3976531747339).

113003211231221 is a wasteful number, since it uses less digits than its factorization.

113003211231221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214636.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 113003211231221 its reverse (122132112300311), we get a palindrome (235135323531532).

The spelling of 113003211231221 in words is "one hundred thirteen trillion, three billion, two hundred eleven million, two hundred thirty-one thousand, two hundred twenty-one".