1320121123002 has 112 divisors (see below), whose sum is σ = 3429334962432. Its totient is φ = 376505055360.

The previous prime is 1320121122979. The next prime is 1320121123031. The reversal of 1320121123002 is 2003211210231.

It is a super-2 number, since 2×1320121123002² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2148298 + ... + 2693589.

Almost surely, 2^{1320121123002} is an apocalyptic number.

1320121123002 is an abundant number, since it is smaller than the sum of its proper divisors (2109213839430).

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

1320121123002 is a wasteful number, since it uses less digits than its factorization.

1320121123002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4841935 (or 4841920 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1320121123002 its reverse (2003211210231), we get a palindrome (3323332333233).

The spelling of 1320121123002 in words is "one trillion, three hundred twenty billion, one hundred twenty-one million, one hundred twenty-three thousand, two".