121110231103213 has 6 divisors (see below), whose sum is σ = 133121163113582. Its totient is φ = 110100210093720.

The previous prime is 121110231103187. The next prime is 121110231103259. The reversal of 121110231103213 is 312301132011121.

It can be written as a sum of positive squares in only one way, i.e., 95446705920489 + 25663525182724 = 9769683^2 + 5065918^2 .

It is not a de Polignac number, because 121110231103213 - 2⁵ = 121110231103181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121110231103313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500455500306 + ... + 500455500547.

Almost surely, 2^{121110231103213} is an apocalyptic number.

It is an amenable number.

121110231103213 is a deficient number, since it is larger than the sum of its proper divisors (12010932010369).

121110231103213 is a wasteful number, since it uses less digits than its factorization.

121110231103213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000911000875 (or 1000911000864 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 121110231103213 its reverse (312301132011121), we get a palindrome (433411363114334).

The spelling of 121110231103213 in words is "one hundred twenty-one trillion, one hundred ten billion, two hundred thirty-one million, one hundred three thousand, two hundred thirteen".