30430137531 has 12 divisors (see below), whose sum is σ = 41539037928. Its totient is φ = 19814969664.

The previous prime is 30430137503. The next prime is 30430137533. The reversal of 30430137531 is 13573103403.

It is not a de Polignac number, because 30430137531 - 2⁷ = 30430137403 is a prime.

It is a super-2 number, since 2×30430137531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30430137533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2737390 + ... + 2748483.

It is an arithmetic number, because the mean of its divisors is an integer number (3461586494).

Almost surely, 2^30430137531 is an apocalyptic number.

30430137531 is a deficient number, since it is larger than the sum of its proper divisors (11108900397).

30430137531 is an equidigital number, since it uses as much as digits as its factorization.

30430137531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5485962 (or 5485919 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 30.

The spelling of 30430137531 in words is "thirty billion, four hundred thirty million, one hundred thirty-seven thousand, five hundred thirty-one".