1320121002 has 32 divisors (see below), whose sum is σ = 2713838400. Its totient is φ = 427794048.

The previous prime is 1320120959. The next prime is 1320121003. The reversal of 1320121002 is 2001210231.

It is not an unprimeable number, because it can be changed into a prime (1320121003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 482374 + ... + 485102.

It is an arithmetic number, because the mean of its divisors is an integer number (84807450).

Almost surely, 2^1320121002 is an apocalyptic number.

1320121002 is an abundant number, since it is smaller than the sum of its proper divisors (1393717398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1320121002 is a wasteful number, since it uses less digits than its factorization.

1320121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4950.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1320121002 is about 36333.4694462282. The cubic root of 1320121002 is about 1096.9948282787.

Adding to 1320121002 its reverse (2001210231), we get a palindrome (3321331233).

The spelling of 1320121002 in words is "one billion, three hundred twenty million, one hundred twenty-one thousand, two".