30561432313 has 4 divisors (see below), whose sum is σ = 30623676048. Its totient is φ = 30499188580.

The previous prime is 30561432311. The next prime is 30561432329. The reversal of 30561432313 is 31323416503.

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 30561432313 - 2¹ = 30561432311 is a prime.

It is a super-2 number, since 2×30561432313² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30561432311) 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, 31121131 + ... + 31122112.

It is an arithmetic number, because the mean of its divisors is an integer number (7655919012).

Almost surely, 2^30561432313 is an apocalyptic number.

It is an amenable number.

30561432313 is a deficient number, since it is larger than the sum of its proper divisors (62243735).

30561432313 is an equidigital number, since it uses as much as digits as its factorization.

30561432313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62243734.

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 30561432313 its reverse (31323416503), we get a palindrome (61884848816).

The spelling of 30561432313 in words is "thirty billion, five hundred sixty-one million, four hundred thirty-two thousand, three hundred thirteen".