1152021105 has 12 divisors (see below), whose sum is σ = 1996836660. Its totient is φ = 614411232.

The previous prime is 1152021097. The next prime is 1152021121. The reversal of 1152021105 is 5011202511.

It can be written as a sum of positive squares in 2 ways, for example, as 862068321 + 289952784 = 29361^2 + 17028^2 .

It is not a de Polignac number, because 1152021105 - 2³ = 1152021097 is a prime.

It is a super-3 number, since 3×1152021105³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12800190 + ... + 12800279.

It is an arithmetic number, because the mean of its divisors is an integer number (166403055).

Almost surely, 2^1152021105 is an apocalyptic number.

1152021105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1152021105 is a deficient number, since it is larger than the sum of its proper divisors (844815555).

1152021105 is a wasteful number, since it uses less digits than its factorization.

1152021105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25600480 (or 25600477 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 1152021105 is about 33941.4364015432. The cubic root of 1152021105 is about 1048.3029593513.

Adding to 1152021105 its reverse (5011202511), we get a palindrome (6163223616).

The spelling of 1152021105 in words is "one billion, one hundred fifty-two million, twenty-one thousand, one hundred five".