13020530450 has 24 divisors (see below), whose sum is σ = 24291384240. Its totient is φ = 5192470800.

The previous prime is 13020530423. The next prime is 13020530477. The reversal of 13020530450 is 5403502031.

It is an interprime number because it is at equal distance from previous prime (13020530423) and next prime (13020530477).

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, 376820 + ... + 409919.

It is an arithmetic number, because the mean of its divisors is an integer number (1012141010).

Almost surely, 2^13020530450 is an apocalyptic number.

13020530450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13020530450 is a deficient number, since it is larger than the sum of its proper divisors (11270853790).

13020530450 is a wasteful number, since it uses less digits than its factorization.

13020530450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787082 (or 787077 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The spelling of 13020530450 in words is "thirteen billion, twenty million, five hundred thirty thousand, four hundred fifty".