1005103231051 has 2 divisors, whose sum is σ = 1005103231052. Its totient is φ = 1005103231050.

The previous prime is 1005103231049. The next prime is 1005103231129. The reversal of 1005103231051 is 1501323015001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1005103231051 - 2¹ = 1005103231049 is a prime.

Together with 1005103231049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1005103231031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502551615525 + 502551615526.

It is an arithmetic number, because the mean of its divisors is an integer number (502551615526).

Almost surely, 2^{1005103231051} is an apocalyptic number.

1005103231051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005103231051 is an equidigital number, since it uses as much as digits as its factorization.

1005103231051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 22.

Adding to 1005103231051 its reverse (1501323015001), we get a palindrome (2506426246052).

The spelling of 1005103231051 in words is "one trillion, five billion, one hundred three million, two hundred thirty-one thousand, fifty-one".