1115121002 has 8 divisors (see below), whose sum is σ = 1689243012. Its totient is φ = 552040000.

The previous prime is 1115120989. The next prime is 1115121017. The reversal of 1115121002 is 2001215111.

It can be written as a sum of positive squares in 2 ways, for example, as 952277881 + 162843121 = 30859^2 + 12761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2759999 + ... + 2760402.

Almost surely, 2^1115121002 is an apocalyptic number.

1115121002 is a deficient number, since it is larger than the sum of its proper divisors (574122010).

1115121002 is a wasteful number, since it uses less digits than its factorization.

1115121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5520504.

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 1115121002 is about 33393.4275269850. The cubic root of 1115121002 is about 1036.9886391240.

Adding to 1115121002 its reverse (2001215111), we get a palindrome (3116336113).

The spelling of 1115121002 in words is "one billion, one hundred fifteen million, one hundred twenty-one thousand, two".