1303402120 has 64 divisors (see below), whose sum is σ = 3031499520. Its totient is φ = 504059904.

The previous prime is 1303402117. The next prime is 1303402123. The reversal of 1303402120 is 212043031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1303402117) and next prime (1303402123).

It is a junction number, because it is equal to n+sod(n) for n = 1303402094 and 1303402103.

It is not an unprimeable number, because it can be changed into a prime (1303402123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151864 + ... + 160216.

It is an arithmetic number, because the mean of its divisors is an integer number (47367180).

Almost surely, 2^1303402120 is an apocalyptic number.

1303402120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1303402120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515749760).

1303402120 is an abundant number, since it is smaller than the sum of its proper divisors (1728097400).

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

1303402120 is a wasteful number, since it uses less digits than its factorization.

1303402120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8494 (or 8490 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1303402120 is about 36102.6608437661. The cubic root of 1303402120 is about 1092.3441177330.

Adding to 1303402120 its reverse (212043031), we get a palindrome (1515445151).

The spelling of 1303402120 in words is "one billion, three hundred three million, four hundred two thousand, one hundred twenty".