30120311235 has 32 divisors (see below), whose sum is σ = 55510843392. Its totient is φ = 13660859520.

The previous prime is 30120311231. The next prime is 30120311237. The reversal of 30120311235 is 53211302103.

It is not a de Polignac number, because 30120311235 - 2² = 30120311231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (30120311231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1116036 + ... + 1142705.

It is an arithmetic number, because the mean of its divisors is an integer number (1734713856).

Almost surely, 2^30120311235 is an apocalyptic number.

30120311235 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30120311235 is a deficient number, since it is larger than the sum of its proper divisors (25390532157).

30120311235 is a wasteful number, since it uses less digits than its factorization.

30120311235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258883.

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 30120311235 its reverse (53211302103), we get a palindrome (83331613338).

The spelling of 30120311235 in words is "thirty billion, one hundred twenty million, three hundred eleven thousand, two hundred thirty-five".