30712540233 has 4 divisors (see below), whose sum is σ = 40950053648. Its totient is φ = 20475026820.

The previous prime is 30712540189. The next prime is 30712540259. The reversal of 30712540233 is 33204521703.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30712540233 - 2¹⁸ = 30712278089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30712540233.

It is not an unprimeable number, because it can be changed into a prime (30712540933) 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, 5118756703 + ... + 5118756708.

It is an arithmetic number, because the mean of its divisors is an integer number (10237513412).

Almost surely, 2^30712540233 is an apocalyptic number.

It is an amenable number.

30712540233 is a deficient number, since it is larger than the sum of its proper divisors (10237513415).

30712540233 is a wasteful number, since it uses less digits than its factorization.

30712540233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10237513414.

The product of its (nonzero) digits is 15120, while the sum is 30.

The spelling of 30712540233 in words is "thirty billion, seven hundred twelve million, five hundred forty thousand, two hundred thirty-three".