1305513423050 has 24 divisors (see below), whose sum is σ = 2428288915500. Its totient is φ = 522198068480.

The previous prime is 1305513423043. The next prime is 1305513423079. The reversal of 1305513423050 is 503243155031.

It can be written as a sum of positive squares in 6 ways, for example, as 1125358167241 + 180155255809 = 1060829^2 + 424447^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1305513422998 and 1305513423016.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4748756 + ... + 5016144.

Almost surely, 2^{1305513423050} is an apocalyptic number.

1305513423050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1305513423050 is a deficient number, since it is larger than the sum of its proper divisors (1122775492450).

1305513423050 is a wasteful number, since it uses less digits than its factorization.

1305513423050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365050 (or 365045 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 1305513423050 its reverse (503243155031), we get a palindrome (1808756578081).

The spelling of 1305513423050 in words is "one trillion, three hundred five billion, five hundred thirteen million, four hundred twenty-three thousand, fifty".