1051661031051 has 8 divisors (see below), whose sum is σ = 1402638735424. Its totient is φ = 700895340360.

The previous prime is 1051661030977. The next prime is 1051661031053. The reversal of 1051661031051 is 1501301661501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1051661031051 - 2⁷ = 1051661030923 is a prime.

It is a super-2 number, since 2×1051661031051² (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 (1051661031053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52991845 + ... + 53011686.

It is an arithmetic number, because the mean of its divisors is an integer number (175329841928).

Almost surely, 2^{1051661031051} is an apocalyptic number.

1051661031051 is a deficient number, since it is larger than the sum of its proper divisors (350977704373).

1051661031051 is a wasteful number, since it uses less digits than its factorization.

1051661031051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106006841.

The product of its (nonzero) digits is 2700, while the sum is 30.

Adding to 1051661031051 its reverse (1501301661501), we get a palindrome (2552962692552).

The spelling of 1051661031051 in words is "one trillion, fifty-one billion, six hundred sixty-one million, thirty-one thousand, fifty-one".