2121010103113 has 4 divisors (see below), whose sum is σ = 2313829203408. Its totient is φ = 1928191002820.

The previous prime is 2121010103099. The next prime is 2121010103141. The reversal of 2121010103113 is 3113010101212.

It is a happy number.

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-2121010103113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121010103153) 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, 96409550131 + ... + 96409550152.

It is an arithmetic number, because the mean of its divisors is an integer number (578457300852).

Almost surely, 2^{2121010103113} is an apocalyptic number.

It is an amenable number.

2121010103113 is a deficient number, since it is larger than the sum of its proper divisors (192819100295).

2121010103113 is a wasteful number, since it uses less digits than its factorization.

2121010103113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192819100294.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 2121010103113 its reverse (3113010101212), we get a palindrome (5234020204325).

The spelling of 2121010103113 in words is "two trillion, one hundred twenty-one billion, ten million, one hundred three thousand, one hundred thirteen".