2112401251 has 2 divisors, whose sum is σ = 2112401252. Its totient is φ = 2112401250.

The previous prime is 2112401243. The next prime is 2112401279. The reversal of 2112401251 is 1521042112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2112401251 - 2³ = 2112401243 is a prime.

It is not a weakly prime, because it can be changed into another prime (2112401281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056200625 + 1056200626.

It is an arithmetic number, because the mean of its divisors is an integer number (1056200626).

Almost surely, 2^2112401251 is an apocalyptic number.

2112401251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112401251 is an equidigital number, since it uses as much as digits as its factorization.

2112401251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2112401251 is about 45960.8665170708. The cubic root of 2112401251 is about 1283.0949785173.

Adding to 2112401251 its reverse (1521042112), we get a palindrome (3633443363).

The spelling of 2112401251 in words is "two billion, one hundred twelve million, four hundred one thousand, two hundred fifty-one".