1121213008 has 20 divisors (see below), whose sum is σ = 2173143028. Its totient is φ = 560401920.

The previous prime is 1121212999. The next prime is 1121213021. The reversal of 1121213008 is 8003121211.

It can be written as a sum of positive squares in 2 ways, for example, as 35378704 + 1085834304 = 5948^2 + 32952^2 .

It is a congruent number.

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, 38710 + ... + 61162.

Almost surely, 2^1121213008 is an apocalyptic number.

It is an amenable number.

1121213008 is a deficient number, since it is larger than the sum of its proper divisors (1051930020).

1121213008 is a wasteful number, since it uses less digits than its factorization.

1121213008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25582 (or 25576 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 1121213008 is about 33484.5189303953. The cubic root of 1121213008 is about 1038.8735980125.

Adding to 1121213008 its reverse (8003121211), we get a palindrome (9124334219).

The spelling of 1121213008 in words is "one billion, one hundred twenty-one million, two hundred thirteen thousand, eight".