30227120155 has 4 divisors (see below), whose sum is σ = 36272544192. Its totient is φ = 24181696120.

The previous prime is 30227120129. The next prime is 30227120167. The reversal of 30227120155 is 55102172203.

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

It is a de Polignac number, because none of the positive numbers 2^k-30227120155 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3022712011 + ... + 3022712020.

It is an arithmetic number, because the mean of its divisors is an integer number (9068136048).

Almost surely, 2^30227120155 is an apocalyptic number.

30227120155 is a deficient number, since it is larger than the sum of its proper divisors (6045424037).

30227120155 is an equidigital number, since it uses as much as digits as its factorization.

30227120155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6045424036.

The product of its (nonzero) digits is 4200, while the sum is 28.

Adding to 30227120155 its reverse (55102172203), we get a palindrome (85329292358).

The spelling of 30227120155 in words is "thirty billion, two hundred twenty-seven million, one hundred twenty thousand, one hundred fifty-five".