30351320405 has 16 divisors (see below), whose sum is σ = 41645180160. Its totient is φ = 20802077952.

The previous prime is 30351320401. The next prime is 30351320437. The reversal of 30351320405 is 50402315303.

It is a cyclic number.

It is not a de Polignac number, because 30351320405 - 2² = 30351320401 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30351320401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141284 + ... + 284013.

It is an arithmetic number, because the mean of its divisors is an integer number (2602823760).

Almost surely, 2^30351320405 is an apocalyptic number.

30351320405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30351320405 is a deficient number, since it is larger than the sum of its proper divisors (11293859755).

30351320405 is a wasteful number, since it uses less digits than its factorization.

30351320405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427348.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 30351320405 its reverse (50402315303), we get a palindrome (80753635708).

The spelling of 30351320405 in words is "thirty billion, three hundred fifty-one million, three hundred twenty thousand, four hundred five".