1065503402051 has 4 divisors (see below), whose sum is σ = 1162367347704. Its totient is φ = 968639456400.

The previous prime is 1065503402023. The next prime is 1065503402063. The reversal of 1065503402051 is 1502043055601.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-1065503402051 is a prime.

It is a super-2 number, since 2×1065503402051² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1065503401999 and 1065503402017.

It is not an unprimeable number, because it can be changed into a prime (1065503402011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48431972810 + ... + 48431972831.

It is an arithmetic number, because the mean of its divisors is an integer number (290591836926).

Almost surely, 2^{1065503402051} is an apocalyptic number.

1065503402051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1065503402051 is a deficient number, since it is larger than the sum of its proper divisors (96863945653).

1065503402051 is an equidigital number, since it uses as much as digits as its factorization.

1065503402051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96863945652.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 1065503402051 its reverse (1502043055601), we get a palindrome (2567546457652).

The spelling of 1065503402051 in words is "one trillion, sixty-five billion, five hundred three million, four hundred two thousand, fifty-one".