30120440230031 has 8 divisors (see below), whose sum is σ = 30945566176320. Its totient is φ = 29295896388768.

The previous prime is 30120440229947. The next prime is 30120440230051. The reversal of 30120440230031 is 13003204402103.

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

It is a cyclic number.

It is not a de Polignac number, because 30120440230031 - 2²² = 30120436035727 is a prime.

It is a super-2 number, since 2×30120440230031² (a number of 28 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 = 30120440229979 and 30120440230006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120440230051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145421351 + ... + 145628328.

It is an arithmetic number, because the mean of its divisors is an integer number (3868195772040).

Almost surely, 2^{30120440230031} is an apocalyptic number.

30120440230031 is a deficient number, since it is larger than the sum of its proper divisors (825125946289).

30120440230031 is a wasteful number, since it uses less digits than its factorization.

30120440230031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291052513.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30120440230031 its reverse (13003204402103), we get a palindrome (43123644632134).

The spelling of 30120440230031 in words is "thirty trillion, one hundred twenty billion, four hundred forty million, two hundred thirty thousand, thirty-one".