2000001000251 has 2 divisors, whose sum is σ = 2000001000252. Its totient is φ = 2000001000250.

The previous prime is 2000001000247. The next prime is 2000001000337. The reversal of 2000001000251 is 1520001000002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2000001000251 - 2² = 2000001000247 is a prime.

It is not a weakly prime, because it can be changed into another prime (2000001090251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000000500125 + 1000000500126.

It is an arithmetic number, because the mean of its divisors is an integer number (1000000500126).

Almost surely, 2^{2000001000251} is an apocalyptic number.

2000001000251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000001000251 is an equidigital number, since it uses as much as digits as its factorization.

2000001000251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 11.

Adding to 2000001000251 its reverse (1520001000002), we get a palindrome (3520002000253).

The spelling of 2000001000251 in words is "two trillion, one million, two hundred fifty-one", and thus it is an aban number.