30243002031 has 48 divisors (see below), whose sum is σ = 51893712000. Its totient is φ = 16765600320.

The previous prime is 30243001991. The next prime is 30243002039. The reversal of 30243002031 is 13020034203.

30243002031 is a `hidden beast` number, since 30 + 2 + 430 + 0 + 203 + 1 = 666.

It is not a de Polignac number, because 30243002031 - 2²² = 30238807727 is a prime.

It is a super-2 number, since 2×30243002031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30243001995 and 30243002013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30243002039) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 222661 + ... + 331758.

It is an arithmetic number, because the mean of its divisors is an integer number (1081119000).

Almost surely, 2^30243002031 is an apocalyptic number.

30243002031 is a deficient number, since it is larger than the sum of its proper divisors (21650709969).

30243002031 is a wasteful number, since it uses less digits than its factorization.

30243002031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554484 (or 554481 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30243002031 its reverse (13020034203), we get a palindrome (43263036234).

The spelling of 30243002031 in words is "thirty billion, two hundred forty-three million, two thousand, thirty-one".