30012252155 has 4 divisors (see below), whose sum is σ = 36014702592. Its totient is φ = 24009801720.

The previous prime is 30012252143. The next prime is 30012252157. The reversal of 30012252155 is 55125221003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55125221003 = 17 ⋅3242660059.

It is not a de Polignac number, because 30012252155 - 2¹⁰ = 30012251131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30012252157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3001225211 + ... + 3001225220.

It is an arithmetic number, because the mean of its divisors is an integer number (9003675648).

Almost surely, 2^30012252155 is an apocalyptic number.

30012252155 is a deficient number, since it is larger than the sum of its proper divisors (6002450437).

30012252155 is an equidigital number, since it uses as much as digits as its factorization.

30012252155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6002450436.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 30012252155 its reverse (55125221003), we get a palindrome (85137473158).

The spelling of 30012252155 in words is "thirty billion, twelve million, two hundred fifty-two thousand, one hundred fifty-five".