12030532531 has 4 divisors (see below), whose sum is σ = 12045186864. Its totient is φ = 12015878200.

The previous prime is 12030532517. The next prime is 12030532589. The reversal of 12030532531 is 13523503021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13523503021 = 7 ⋅1931929003.

It is a cyclic number.

It is not a de Polignac number, because 12030532531 - 2¹⁵ = 12030499763 is a prime.

It is a super-2 number, since 2×12030532531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12030532496 and 12030532505.

It is not an unprimeable number, because it can be changed into a prime (12030632531) 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 3 ways as a sum of consecutive naturals, for example, 7325935 + ... + 7327576.

It is an arithmetic number, because the mean of its divisors is an integer number (3011296716).

Almost surely, 2^12030532531 is an apocalyptic number.

12030532531 is a deficient number, since it is larger than the sum of its proper divisors (14654333).

12030532531 is an equidigital number, since it uses as much as digits as its factorization.

12030532531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14654332.

The product of its (nonzero) digits is 2700, while the sum is 25.

The spelling of 12030532531 in words is "twelve billion, thirty million, five hundred thirty-two thousand, five hundred thirty-one".