30724312232 has 32 divisors (see below), whose sum is σ = 58537080000. Its totient is φ = 15115296000.

The previous prime is 30724312231. The next prime is 30724312253. The reversal of 30724312232 is 23221342703.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30724312195 and 30724312204.

It is not an unprimeable number, because it can be changed into a prime (30724312231) 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 7 ways as a sum of consecutive naturals, for example, 229232 + ... + 337632.

It is an arithmetic number, because the mean of its divisors is an integer number (1829283750).

Almost surely, 2^30724312232 is an apocalyptic number.

It is an amenable number.

30724312232 is a deficient number, since it is larger than the sum of its proper divisors (27812767768).

30724312232 is a wasteful number, since it uses less digits than its factorization.

30724312232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108977 (or 108973 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

Adding to 30724312232 its reverse (23221342703), we get a palindrome (53945654935).

The spelling of 30724312232 in words is "thirty billion, seven hundred twenty-four million, three hundred twelve thousand, two hundred thirty-two".