30243122431 has 4 divisors (see below), whose sum is σ = 30349988872. Its totient is φ = 30136255992.

The previous prime is 30243122423. The next prime is 30243122449. The reversal of 30243122431 is 13422134203.

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

It is a cyclic number.

It is not a de Polignac number, because 30243122431 - 2³ = 30243122423 is a prime.

It is a super-2 number, since 2×30243122431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30243122396 and 30243122405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30243122401) 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, 53432796 + ... + 53433361.

It is an arithmetic number, because the mean of its divisors is an integer number (7587497218).

Almost surely, 2^30243122431 is an apocalyptic number.

30243122431 is a deficient number, since it is larger than the sum of its proper divisors (106866441).

30243122431 is a wasteful number, since it uses less digits than its factorization.

30243122431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106866440.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 30243122431 its reverse (13422134203), we get a palindrome (43665256634).

The spelling of 30243122431 in words is "thirty billion, two hundred forty-three million, one hundred twenty-two thousand, four hundred thirty-one".