2121313030111 has 16 divisors (see below), whose sum is σ = 2341740780288. Its totient is φ = 1905564081600.

The previous prime is 2121313030093. The next prime is 2121313030117. The reversal of 2121313030111 is 1110303131212.

It is a cyclic number.

It is not a de Polignac number, because 2121313030111 - 2²¹ = 2121310932959 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 (2121313030117) 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, 1530685 + ... + 2566246.

It is an arithmetic number, because the mean of its divisors is an integer number (146358798768).

Almost surely, 2^{2121313030111} is an apocalyptic number.

2121313030111 is a deficient number, since it is larger than the sum of its proper divisors (220427750177).

2121313030111 is a wasteful number, since it uses less digits than its factorization.

2121313030111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097502.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 2121313030111 its reverse (1110303131212), we get a palindrome (3231616161323).

The spelling of 2121313030111 in words is "two trillion, one hundred twenty-one billion, three hundred thirteen million, thirty thousand, one hundred eleven".