30503414430521 has 4 divisors (see below), whose sum is σ = 32297732926452. Its totient is φ = 28709095934592.

The previous prime is 30503414430509. The next prime is 30503414430539. The reversal of 30503414430521 is 12503441430503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13652019978496 + 16851394452025 = 3694864^2 + 4105045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30503414430521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30503414430551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897159247940 + ... + 897159247973.

It is an arithmetic number, because the mean of its divisors is an integer number (8074433231613).

Almost surely, 2^{30503414430521} is an apocalyptic number.

It is an amenable number.

30503414430521 is a deficient number, since it is larger than the sum of its proper divisors (1794318495931).

30503414430521 is a wasteful number, since it uses less digits than its factorization.

30503414430521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794318495930.

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 30503414430521 in words is "thirty trillion, five hundred three billion, four hundred fourteen million, four hundred thirty thousand, five hundred twenty-one".