30000413721 has 16 divisors (see below), whose sum is σ = 40779209408. Its totient is φ = 19612929600.

The previous prime is 30000413719. The next prime is 30000413761. The reversal of 30000413721 is 12731400003.

It is not a de Polignac number, because 30000413721 - 2¹ = 30000413719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30000413761) 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, 187066 + ... + 308211.

It is an arithmetic number, because the mean of its divisors is an integer number (2548700588).

Almost surely, 2^30000413721 is an apocalyptic number.

It is an amenable number.

30000413721 is a deficient number, since it is larger than the sum of its proper divisors (10778795687).

30000413721 is a wasteful number, since it uses less digits than its factorization.

30000413721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495672.

The product of its (nonzero) digits is 504, while the sum is 21.

Adding to 30000413721 its reverse (12731400003), we get a palindrome (42731813724).

The spelling of 30000413721 in words is "thirty billion, four hundred thirteen thousand, seven hundred twenty-one".