12003473531 has 4 divisors (see below), whose sum is σ = 13718255472. Its totient is φ = 10288691592.

The previous prime is 12003473483. The next prime is 12003473557. The reversal of 12003473531 is 13537430021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12003473531 - 2³⁰ = 10929731707 is a prime.

It is a super-2 number, since 2×12003473531² (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 = 12003473494 and 12003473503.

It is not an unprimeable number, because it can be changed into a prime (12003472531) 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, 857390960 + ... + 857390973.

It is an arithmetic number, because the mean of its divisors is an integer number (3429563868).

Almost surely, 2^12003473531 is an apocalyptic number.

12003473531 is a deficient number, since it is larger than the sum of its proper divisors (1714781941).

12003473531 is an equidigital number, since it uses as much as digits as its factorization.

12003473531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714781940.

The product of its (nonzero) digits is 7560, while the sum is 29.

The spelling of 12003473531 in words is "twelve billion, three million, four hundred seventy-three thousand, five hundred thirty-one".