210001012051 has 2 divisors, whose sum is σ = 210001012052. Its totient is φ = 210001012050.

The previous prime is 210001011991. The next prime is 210001012079. The reversal of 210001012051 is 150210100012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210001012051 is a prime.

It is not a weakly prime, because it can be changed into another prime (210001012751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105000506025 + 105000506026.

It is an arithmetic number, because the mean of its divisors is an integer number (105000506026).

Almost surely, 2^210001012051 is an apocalyptic number.

210001012051 is a deficient number, since it is larger than the sum of its proper divisors (1).

210001012051 is an equidigital number, since it uses as much as digits as its factorization.

210001012051 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 13.

Adding to 210001012051 its reverse (150210100012), we get a palindrome (360211112063).

The spelling of 210001012051 in words is "two hundred ten billion, one million, twelve thousand, fifty-one".