30705552231 has 4 divisors (see below), whose sum is σ = 40940736312. Its totient is φ = 20470368152.

The previous prime is 30705552211. The next prime is 30705552239. The reversal of 30705552231 is 13225550703.

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 30705552231 - 2⁷ = 30705552103 is a prime.

It is a super-2 number, since 2×30705552231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30705552192 and 30705552201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30705552239) 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, 5117592036 + ... + 5117592041.

It is an arithmetic number, because the mean of its divisors is an integer number (10235184078).

Almost surely, 2^30705552231 is an apocalyptic number.

30705552231 is a deficient number, since it is larger than the sum of its proper divisors (10235184081).

30705552231 is a wasteful number, since it uses less digits than its factorization.

30705552231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10235184080.

The product of its (nonzero) digits is 31500, while the sum is 33.

The spelling of 30705552231 in words is "thirty billion, seven hundred five million, five hundred fifty-two thousand, two hundred thirty-one".