30312442143 has 24 divisors (see below), whose sum is σ = 43915716000. Its totient is φ = 20147871744.

The previous prime is 30312442117. The next prime is 30312442157. The reversal of 30312442143 is 34124421303.

It is not a de Polignac number, because 30312442143 - 2¹⁰ = 30312441119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312442543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8148838 + ... + 8152556.

It is an arithmetic number, because the mean of its divisors is an integer number (1829821500).

Almost surely, 2^30312442143 is an apocalyptic number.

30312442143 is a deficient number, since it is larger than the sum of its proper divisors (13603273857).

30312442143 is a wasteful number, since it uses less digits than its factorization.

30312442143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6191 (or 6188 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 30312442143 its reverse (34124421303), we get a palindrome (64436863446).

The spelling of 30312442143 in words is "thirty billion, three hundred twelve million, four hundred forty-two thousand, one hundred forty-three".