30230320402 has 4 divisors (see below), whose sum is σ = 45345480606. Its totient is φ = 15115160200.

The previous prime is 30230320381. The next prime is 30230320409. The reversal of 30230320402 is 20402303203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27267586641 + 2962733761 = 165129^2 + 54431^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30230320402.

It is not an unprimeable number, because it can be changed into a prime (30230320409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7557580099 + ... + 7557580102.

Almost surely, 2^30230320402 is an apocalyptic number.

30230320402 is a deficient number, since it is larger than the sum of its proper divisors (15115160204).

30230320402 is a wasteful number, since it uses less digits than its factorization.

30230320402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15115160203.

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 30230320402 its reverse (20402303203), we get a palindrome (50632623605).

The spelling of 30230320402 in words is "thirty billion, two hundred thirty million, three hundred twenty thousand, four hundred two".