121132110213 has 12 divisors (see below), whose sum is σ = 174977957440. Its totient is φ = 80750423016.

The previous prime is 121132110191. The next prime is 121132110241. The reversal of 121132110213 is 312011231121.

121132110213 is a `hidden beast` number, since 121 + 1 + 321 + 10 + 213 = 666.

It is not a de Polignac number, because 121132110213 - 2⁶ = 121132110149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121132110413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177181 + ... + 523122.

Almost surely, 2^121132110213 is an apocalyptic number.

It is an amenable number.

121132110213 is a deficient number, since it is larger than the sum of its proper divisors (53845847227).

121132110213 is a wasteful number, since it uses less digits than its factorization.

121132110213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719528 (or 719525 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121132110213 its reverse (312011231121), we get a palindrome (433143341334).

The spelling of 121132110213 in words is "one hundred twenty-one billion, one hundred thirty-two million, one hundred ten thousand, two hundred thirteen".