1081273011 has 16 divisors (see below), whose sum is σ = 1774397184. Its totient is φ = 570341664.

The previous prime is 1081273003. The next prime is 1081273021. The reversal of 1081273011 is 1103721801.

It is a happy number.

It is not a de Polignac number, because 1081273011 - 2³ = 1081273003 is a prime.

It is a super-2 number, since 2×1081273011² = 2338302648634012242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1081273021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1980081 + ... + 1980626.

It is an arithmetic number, because the mean of its divisors is an integer number (110899824).

Almost surely, 2^1081273011 is an apocalyptic number.

1081273011 is a deficient number, since it is larger than the sum of its proper divisors (693124173).

1081273011 is a wasteful number, since it uses less digits than its factorization.

1081273011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960730.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 1081273011 is about 32882.7159918398. The cubic root of 1081273011 is about 1026.3885242037.

Adding to 1081273011 its reverse (1103721801), we get a palindrome (2184994812).

The spelling of 1081273011 in words is "one billion, eighty-one million, two hundred seventy-three thousand, eleven".