2130121030111 has 4 divisors (see below), whose sum is σ = 2130139932424. Its totient is φ = 2130102127800.

The previous prime is 2130121030109. The next prime is 2130121030117. The reversal of 2130121030111 is 1110301210312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2130121030111 - 2¹ = 2130121030109 is a prime.

It is a super-2 number, since 2×2130121030111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130121030117) 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, 9281100 + ... + 9507841.

It is an arithmetic number, because the mean of its divisors is an integer number (532534983106).

Almost surely, 2^{2130121030111} is an apocalyptic number.

2130121030111 is a deficient number, since it is larger than the sum of its proper divisors (18902313).

2130121030111 is a wasteful number, since it uses less digits than its factorization.

2130121030111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18902312.

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

Adding to 2130121030111 its reverse (1110301210312), we get a palindrome (3240422240423).

It can be divided in two parts, 21301210301 and 11, that added together give a palindrome (21301210312).

The spelling of 2130121030111 in words is "two trillion, one hundred thirty billion, one hundred twenty-one million, thirty thousand, one hundred eleven".