30312442145 has 16 divisors (see below), whose sum is σ = 37240644672. Its totient is φ = 23673410880.

The previous prime is 30312442117. The next prime is 30312442157. The reversal of 30312442145 is 54124421303.

It is not a de Polignac number, because 30312442145 - 2¹⁸ = 30312180001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378659 + ... + 451671.

It is an arithmetic number, because the mean of its divisors is an integer number (2327540292).

Almost surely, 2^30312442145 is an apocalyptic number.

It is an amenable number.

30312442145 is a deficient number, since it is larger than the sum of its proper divisors (6928202527).

30312442145 is a wasteful number, since it uses less digits than its factorization.

30312442145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74992.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 30312442145 its reverse (54124421303), we get a palindrome (84436863448).

The spelling of 30312442145 in words is "thirty billion, three hundred twelve million, four hundred forty-two thousand, one hundred forty-five".