1001061100531 has 2 divisors, whose sum is σ = 1001061100532. Its totient is φ = 1001061100530.

The previous prime is 1001061100499. The next prime is 1001061100537. The reversal of 1001061100531 is 1350011601001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001061100531 - 2⁵ = 1001061100499 is a prime.

It is a super-2 number, since 2×1001061100531² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1001061100499 and 1001061100508.

It is not a weakly prime, because it can be changed into another prime (1001061100537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500530550265 + 500530550266.

It is an arithmetic number, because the mean of its divisors is an integer number (500530550266).

Almost surely, 2^{1001061100531} is an apocalyptic number.

1001061100531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001061100531 is an equidigital number, since it uses as much as digits as its factorization.

1001061100531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 19.

Adding to 1001061100531 its reverse (1350011601001), we get a palindrome (2351072701532).

The spelling of 1001061100531 in words is "one trillion, one billion, sixty-one million, one hundred thousand, five hundred thirty-one".