30620400445313 has 6 divisors (see below), whose sum is σ = 35619649497666. Its totient is φ = 26246057524512.

The previous prime is 30620400445277. The next prime is 30620400445321. The reversal of 30620400445313 is 31354400402603.

It can be written as a sum of positive squares in only one way, i.e., 21644006945344 + 8976393499969 = 4652312^2 + 2996063^2 .

It is not a de Polignac number, because 30620400445313 - 2⁶ = 30620400445249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30620400345313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 312453065720 + ... + 312453065817.

It is an arithmetic number, because the mean of its divisors is an integer number (5936608249611).

Almost surely, 2^{30620400445313} is an apocalyptic number.

It is an amenable number.

30620400445313 is a deficient number, since it is larger than the sum of its proper divisors (4999249052353).

30620400445313 is an equidigital number, since it uses as much as digits as its factorization.

30620400445313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624906131551 (or 624906131544 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 30620400445313 its reverse (31354400402603), we get a palindrome (61974800847916).

The spelling of 30620400445313 in words is "thirty trillion, six hundred twenty billion, four hundred million, four hundred forty-five thousand, three hundred thirteen".