1331121002 has 16 divisors (see below), whose sum is σ = 2013552000. Its totient is φ = 659952720.

The previous prime is 1331120983. The next prime is 1331121013. The reversal of 1331121002 is 2001211331.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184499 + ... + 191577.

It is an arithmetic number, because the mean of its divisors is an integer number (125847000).

Almost surely, 2^1331121002 is an apocalyptic number.

1331121002 is a deficient number, since it is larger than the sum of its proper divisors (682430998).

1331121002 is a wasteful number, since it uses less digits than its factorization.

1331121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7861.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1331121002 is about 36484.5309960262. The cubic root of 1331121002 is about 1100.0333328742.

Adding to 1331121002 its reverse (2001211331), we get a palindrome (3332332333).

The spelling of 1331121002 in words is "one billion, three hundred thirty-one million, one hundred twenty-one thousand, two".