1011050005531 has 2 divisors, whose sum is σ = 1011050005532. Its totient is φ = 1011050005530.

The previous prime is 1011050005507. The next prime is 1011050005687. The reversal of 1011050005531 is 1355000501101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011050005531 - 2⁵ = 1011050005499 is a prime.

It is a super-2 number, since 2×1011050005531² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1011050045531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505525002765 + 505525002766.

It is an arithmetic number, because the mean of its divisors is an integer number (505525002766).

Almost surely, 2^{1011050005531} is an apocalyptic number.

1011050005531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011050005531 is an equidigital number, since it uses as much as digits as its factorization.

1011050005531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 375, while the sum is 22.

Adding to 1011050005531 its reverse (1355000501101), we get a palindrome (2366050506632).

The spelling of 1011050005531 in words is "one trillion, eleven billion, fifty million, five thousand, five hundred thirty-one".