1011061005 has 16 divisors (see below), whose sum is σ = 1633716864. Its totient is φ = 533892800.

The previous prime is 1011060991. The next prime is 1011061033. The reversal of 1011061005 is 5001601101.

It is not a de Polignac number, because 1011061005 - 2⁴ = 1011060989 is a prime.

It is a super-2 number, since 2×1011061005² = 2044488711663220050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332169 + ... + 335198.

It is an arithmetic number, because the mean of its divisors is an integer number (102107304).

Almost surely, 2^1011061005 is an apocalyptic number.

1011061005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011061005 is a deficient number, since it is larger than the sum of its proper divisors (622655859).

1011061005 is a wasteful number, since it uses less digits than its factorization.

1011061005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667476.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 1011061005 is about 31797.1854886561. The cubic root of 1011061005 is about 1003.6734906094.

Adding to 1011061005 its reverse (5001601101), we get a palindrome (6012662106).

The spelling of 1011061005 in words is "one billion, eleven million, sixty-one thousand, five".