30213253450 has 12 divisors (see below), whose sum is σ = 56196651510. Its totient is φ = 12085301360.

The previous prime is 30213253403. The next prime is 30213253471. The reversal of 30213253450 is 5435231203.

It can be written as a sum of positive squares in 3 ways, for example, as 19144319769 + 11068933681 = 138363^2 + 105209^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 302132485 + ... + 302132584.

Almost surely, 2^30213253450 is an apocalyptic number.

30213253450 is a deficient number, since it is larger than the sum of its proper divisors (25983398060).

30213253450 is a wasteful number, since it uses less digits than its factorization.

30213253450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604265081 (or 604265076 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 30213253450 its reverse (5435231203), we get a palindrome (35648484653).

The spelling of 30213253450 in words is "thirty billion, two hundred thirteen million, two hundred fifty-three thousand, four hundred fifty".