2113121141 has 2 divisors, whose sum is σ = 2113121142. Its totient is φ = 2113121140.

The previous prime is 2113121137. The next prime is 2113121147. The reversal of 2113121141 is 1411213112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2109473041 + 3648100 = 45929^2 + 1910^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113121141 - 2² = 2113121137 is a prime.

It is a super-2 number, since 2×2113121141² = 8930561913082283762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113121147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056560570 + 1056560571.

It is an arithmetic number, because the mean of its divisors is an integer number (1056560571).

Almost surely, 2^2113121141 is an apocalyptic number.

It is an amenable number.

2113121141 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113121141 is an equidigital number, since it uses as much as digits as its factorization.

2113121141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 17.

The square root of 2113121141 is about 45968.6974037768. The cubic root of 2113121141 is about 1283.2407182428.

Adding to 2113121141 its reverse (1411213112), we get a palindrome (3524334253).

The spelling of 2113121141 in words is "two billion, one hundred thirteen million, one hundred twenty-one thousand, one hundred forty-one".