1001005051051 has 4 divisors (see below), whose sum is σ = 1010360238552. Its totient is φ = 991649863552.

The previous prime is 1001005050971. The next prime is 1001005051069. The reversal of 1001005051051 is 1501505001001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1001005051051 - 2¹⁵ = 1001005018283 is a prime.

It is a super-2 number, since 2×1001005051051² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001005051351) 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, 4677593590 + ... + 4677593803.

It is an arithmetic number, because the mean of its divisors is an integer number (252590059638).

Almost surely, 2^{1001005051051} is an apocalyptic number.

1001005051051 is a deficient number, since it is larger than the sum of its proper divisors (9355187501).

1001005051051 is an equidigital number, since it uses as much as digits as its factorization.

1001005051051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9355187500.

The product of its (nonzero) digits is 125, while the sum is 19.

The spelling of 1001005051051 in words is "one trillion, one billion, five million, fifty-one thousand, fifty-one".