30123430881 has 8 divisors (see below), whose sum is σ = 40257765504. Its totient is φ = 20035691760.

The previous prime is 30123430879. The next prime is 30123430921. The reversal of 30123430881 is 18803432103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30123430881 - 2¹ = 30123430879 is a prime.

It is a super-2 number, since 2×30123430881² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30123430861) 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 7 ways as a sum of consecutive naturals, for example, 11647366 + ... + 11649951.

It is an arithmetic number, because the mean of its divisors is an integer number (5032220688).

Almost surely, 2^30123430881 is an apocalyptic number.

It is an amenable number.

30123430881 is a deficient number, since it is larger than the sum of its proper divisors (10134334623).

30123430881 is a wasteful number, since it uses less digits than its factorization.

30123430881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23297751.

The product of its (nonzero) digits is 13824, while the sum is 33.

Adding to 30123430881 its reverse (18803432103), we get a palindrome (48926862984).

The spelling of 30123430881 in words is "thirty billion, one hundred twenty-three million, four hundred thirty thousand, eight hundred eighty-one".