1303123420 has 24 divisors (see below), whose sum is σ = 2855541024. Its totient is φ = 498586176.

The previous prime is 1303123411. The next prime is 1303123433. The reversal of 1303123420 is 243213031.

It is a congruent number.

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, 1415979 + ... + 1416898.

It is an arithmetic number, because the mean of its divisors is an integer number (118980876).

Almost surely, 2^1303123420 is an apocalyptic number.

1303123420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303123420 is an abundant number, since it is smaller than the sum of its proper divisors (1552417604).

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

1303123420 is a wasteful number, since it uses less digits than its factorization.

1303123420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832909 (or 2832907 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1303123420 is about 36098.8008111073. The cubic root of 1303123420 is about 1092.2662553445.

Adding to 1303123420 its reverse (243213031), we get a palindrome (1546336451).

The spelling of 1303123420 in words is "one billion, three hundred three million, one hundred twenty-three thousand, four hundred twenty".