1012010111251 has 2 divisors, whose sum is σ = 1012010111252. Its totient is φ = 1012010111250.

The previous prime is 1012010111221. The next prime is 1012010111369. The reversal of 1012010111251 is 1521110102101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012010111251 - 2⁵ = 1012010111219 is a prime.

It is a super-2 number, since 2×1012010111251² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1012010111221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506005055625 + 506005055626.

It is an arithmetic number, because the mean of its divisors is an integer number (506005055626).

Almost surely, 2^{1012010111251} is an apocalyptic number.

1012010111251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012010111251 is an equidigital number, since it uses as much as digits as its factorization.

1012010111251 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 16.

Adding to 1012010111251 its reverse (1521110102101), we get a palindrome (2533120213352).

The spelling of 1012010111251 in words is "one trillion, twelve billion, ten million, one hundred eleven thousand, two hundred fifty-one".