1045121011 has 16 divisors (see below), whose sum is σ = 1238860800. Its totient is φ = 871063200.

The previous prime is 1045121003. The next prime is 1045121017. The reversal of 1045121011 is 1101215401.

It is a cyclic number.

It is not a de Polignac number, because 1045121011 - 2³ = 1045121003 is a prime.

It is a super-3 number, since 3×1045121011³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1045121017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74176 + ... + 87133.

It is an arithmetic number, because the mean of its divisors is an integer number (77428800).

Almost surely, 2^1045121011 is an apocalyptic number.

1045121011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1045121011 is a deficient number, since it is larger than the sum of its proper divisors (193739789).

1045121011 is a wasteful number, since it uses less digits than its factorization.

1045121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161370.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1045121011 is about 32328.3313983261. The cubic root of 1045121011 is about 1014.8196306446.

Adding to 1045121011 its reverse (1101215401), we get a palindrome (2146336412).

The spelling of 1045121011 in words is "one billion, forty-five million, one hundred twenty-one thousand, eleven".