1010002011251 has 2 divisors, whose sum is σ = 1010002011252. Its totient is φ = 1010002011250.

The previous prime is 1010002011217. The next prime is 1010002011257. The reversal of 1010002011251 is 1521102000101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010002011251 is a prime.

It is not a weakly prime, because it can be changed into another prime (1010002011257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505001005625 + 505001005626.

It is an arithmetic number, because the mean of its divisors is an integer number (505001005626).

Almost surely, 2^{1010002011251} is an apocalyptic number.

1010002011251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010002011251 is an equidigital number, since it uses as much as digits as its factorization.

1010002011251 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 14.

Adding to 1010002011251 its reverse (1521102000101), we get a palindrome (2531104011352).

The spelling of 1010002011251 in words is "one trillion, ten billion, two million, eleven thousand, two hundred fifty-one".