2112887641 has 2 divisors, whose sum is σ = 2112887642. Its totient is φ = 2112887640.

The previous prime is 2112887639. The next prime is 2112887671. The reversal of 2112887641 is 1467882112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2039425600 + 73462041 = 45160^2 + 8571^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112887641 - 2¹ = 2112887639 is a prime.

Together with 2112887639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2112887594 and 2112887603.

It is not a weakly prime, because it can be changed into another prime (2112887611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056443820 + 1056443821.

It is an arithmetic number, because the mean of its divisors is an integer number (1056443821).

Almost surely, 2^2112887641 is an apocalyptic number.

It is an amenable number.

2112887641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112887641 is an equidigital number, since it uses as much as digits as its factorization.

2112887641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 40.

The square root of 2112887641 is about 45966.1575618411. The cubic root of 2112887641 is about 1283.1934504455.

The spelling of 2112887641 in words is "two billion, one hundred twelve million, eight hundred eighty-seven thousand, six hundred forty-one".