1302120404 has 72 divisors (see below), whose sum is σ = 2578431744. Its totient is φ = 571838400.

The previous prime is 1302120403. The next prime is 1302120427. The reversal of 1302120404 is 4040212031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302120403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3547829 + ... + 3548195.

It is an arithmetic number, because the mean of its divisors is an integer number (35811552).

Almost surely, 2^1302120404 is an apocalyptic number.

It is an amenable number.

1302120404 is a deficient number, since it is larger than the sum of its proper divisors (1276311340).

1302120404 is a wasteful number, since it uses less digits than its factorization.

1302120404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1302120404 is about 36084.9054869207. The cubic root of 1302120404 is about 1091.9859437693.

Adding to 1302120404 its reverse (4040212031), we get a palindrome (5342332435).

The spelling of 1302120404 in words is "one billion, three hundred two million, one hundred twenty thousand, four hundred four".