30280532831 has 4 divisors (see below), whose sum is σ = 30389849112. Its totient is φ = 30171216552.

The previous prime is 30280532813. The next prime is 30280532837. The reversal of 30280532831 is 13823508203.

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 30280532831 - 2¹⁸ = 30280270687 is a prime.

It is a super-2 number, since 2×30280532831² (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 = 30280532791 and 30280532800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30280532837) 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 3 ways as a sum of consecutive naturals, for example, 54657725 + ... + 54658278.

It is an arithmetic number, because the mean of its divisors is an integer number (7597462278).

Almost surely, 2^30280532831 is an apocalyptic number.

30280532831 is a deficient number, since it is larger than the sum of its proper divisors (109316281).

30280532831 is a wasteful number, since it uses less digits than its factorization.

30280532831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109316280.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 30280532831 in words is "thirty billion, two hundred eighty million, five hundred thirty-two thousand, eight hundred thirty-one".