2113121030 has 16 divisors (see below), whose sum is σ = 3807773280. Its totient is φ = 844324992.

The previous prime is 2113121027. The next prime is 2113121033. The reversal of 2113121030 is 301213112.

It is an interprime number because it is at equal distance from previous prime (2113121027) and next prime (2113121033).

It is a junction number, because it is equal to n+sod(n) for n = 2113120996 and 2113121014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113121033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105779 + ... + 124158.

It is an arithmetic number, because the mean of its divisors is an integer number (237985830).

Almost surely, 2^2113121030 is an apocalyptic number.

2113121030 is a deficient number, since it is larger than the sum of its proper divisors (1694652250).

2113121030 is a wasteful number, since it uses less digits than its factorization.

2113121030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230863.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2113121030 is about 45968.6961964335. The cubic root of 2113121030 is about 1283.2406957737.

Adding to 2113121030 its reverse (301213112), we get a palindrome (2414334142).

The spelling of 2113121030 in words is "two billion, one hundred thirteen million, one hundred twenty-one thousand, thirty".