30420251430320 has 40 divisors (see below), whose sum is σ = 70735553396736. Its totient is φ = 12166643570688.

The previous prime is 30420251430311. The next prime is 30420251430329. The reversal of 30420251430320 is 2303415202403.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30420251430311) and next prime (30420251430329).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (30420251430329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22093232 + ... + 23429711.

Almost surely, 2^{30420251430320} is an apocalyptic number.

It is an amenable number.

30420251430320 is an abundant number, since it is smaller than the sum of its proper divisors (40315301966416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30420251430320 is a wasteful number, since it uses less digits than its factorization.

30420251430320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45531309 (or 45531303 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 30420251430320 its reverse (2303415202403), we get a palindrome (32723666632723).

The spelling of 30420251430320 in words is "thirty trillion, four hundred twenty billion, two hundred fifty-one million, four hundred thirty thousand, three hundred twenty".