30051212405 has 16 divisors (see below), whose sum is σ = 36145624944. Its totient is φ = 23984916480.

The previous prime is 30051212381. The next prime is 30051212413. The reversal of 30051212405 is 50421215003.

It can be written as a sum of positive squares in 8 ways, for example, as 643204 + 30050569201 = 802^2 + 173351^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30051212405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6179675 + ... + 6184535.

It is an arithmetic number, because the mean of its divisors is an integer number (2259101559).

Almost surely, 2^30051212405 is an apocalyptic number.

It is an amenable number.

30051212405 is a deficient number, since it is larger than the sum of its proper divisors (6094412539).

30051212405 is a wasteful number, since it uses less digits than its factorization.

30051212405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7496.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 30051212405 its reverse (50421215003), we get a palindrome (80472427408).

The spelling of 30051212405 in words is "thirty billion, fifty-one million, two hundred twelve thousand, four hundred five".