12015130431 has 8 divisors (see below), whose sum is σ = 16361028864. Its totient is φ = 7839659480.

The previous prime is 12015130429. The next prime is 12015130441. The reversal of 12015130431 is 13403151021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12015130431 - 2¹ = 12015130429 is a prime.

It is a super-2 number, since 2×12015130431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12015130398 and 12015130407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12015130441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42606705 + ... + 42606986.

It is an arithmetic number, because the mean of its divisors is an integer number (2045128608).

Almost surely, 2^12015130431 is an apocalyptic number.

12015130431 is a deficient number, since it is larger than the sum of its proper divisors (4345898433).

12015130431 is an equidigital number, since it uses as much as digits as its factorization.

12015130431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85213741.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 12015130431 its reverse (13403151021), we get a palindrome (25418281452).

The spelling of 12015130431 in words is "twelve billion, fifteen million, one hundred thirty thousand, four hundred thirty-one".