30253161361 has 4 divisors (see below), whose sum is σ = 31229069824. Its totient is φ = 29277252900.

The previous prime is 30253161319. The next prime is 30253161397. The reversal of 30253161361 is 16316135203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30253161361 - 2⁷ = 30253161233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 975908431 = 30253161361 / (3 + 0 + 2 + 5 + 3 + 1 + 6 + 1 + 3 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30253161761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487954185 + ... + 487954246.

It is an arithmetic number, because the mean of its divisors is an integer number (7807267456).

Almost surely, 2^30253161361 is an apocalyptic number.

30253161361 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30253161361 is a deficient number, since it is larger than the sum of its proper divisors (975908463).

30253161361 is an equidigital number, since it uses as much as digits as its factorization.

30253161361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975908462.

The product of its (nonzero) digits is 9720, while the sum is 31.

Adding to 30253161361 its reverse (16316135203), we get a palindrome (46569296564).

The spelling of 30253161361 in words is "thirty billion, two hundred fifty-three million, one hundred sixty-one thousand, three hundred sixty-one".