2113411987 has 2 divisors, whose sum is σ = 2113411988. Its totient is φ = 2113411986.

The previous prime is 2113411973. The next prime is 2113411997. The reversal of 2113411987 is 7891143112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2113411987 - 2¹¹ = 2113409939 is a prime.

It is not a weakly prime, because it can be changed into another prime (2113411997) 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 as a sum of consecutive naturals, namely, 1056705993 + 1056705994.

It is an arithmetic number, because the mean of its divisors is an integer number (1056705994).

Almost surely, 2^2113411987 is an apocalyptic number.

2113411987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113411987 is an equidigital number, since it uses as much as digits as its factorization.

2113411987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 37.

The square root of 2113411987 is about 45971.8608172434. The cubic root of 2113411987 is about 1283.2995898176.

The spelling of 2113411987 in words is "two billion, one hundred thirteen million, four hundred eleven thousand, nine hundred eighty-seven".