30121413355 has 32 divisors (see below), whose sum is σ = 42472362240. Its totient is φ = 20270839680.

The previous prime is 30121413337. The next prime is 30121413359. The reversal of 30121413355 is 55331412103.

It is a happy number.

It is not a de Polignac number, because 30121413355 - 2¹⁷ = 30121282283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30121413359) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290232 + ... + 380101.

It is an arithmetic number, because the mean of its divisors is an integer number (1327261320).

Almost surely, 2^30121413355 is an apocalyptic number.

30121413355 is a deficient number, since it is larger than the sum of its proper divisors (12350948885).

30121413355 is a wasteful number, since it uses less digits than its factorization.

30121413355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670411.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 30121413355 its reverse (55331412103), we get a palindrome (85452825458).

The spelling of 30121413355 in words is "thirty billion, one hundred twenty-one million, four hundred thirteen thousand, three hundred fifty-five".