1066103531 has 4 divisors (see below), whose sum is σ = 1082015592. Its totient is φ = 1050191472.

The previous prime is 1066103513. The next prime is 1066103551. The reversal of 1066103531 is 1353016601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1353016601 = 131 ⋅10328371.

It is a cyclic number.

It is not a de Polignac number, because 1066103531 - 2²² = 1061909227 is a prime.

It is a super-2 number, since 2×1066103531² = 2273153477621335922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1066103531.

It is not an unprimeable number, because it can be changed into a prime (1066103551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7955930 + ... + 7956063.

It is an arithmetic number, because the mean of its divisors is an integer number (270503898).

Almost surely, 2^1066103531 is an apocalyptic number.

1066103531 is a deficient number, since it is larger than the sum of its proper divisors (15912061).

1066103531 is an equidigital number, since it uses as much as digits as its factorization.

1066103531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15912060.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 1066103531 is about 32651.2408799421. The cubic root of 1066103531 is about 1021.5660714676.

The spelling of 1066103531 in words is "one billion, sixty-six million, one hundred three thousand, five hundred thirty-one".