12420234003431 has 8 divisors (see below), whose sum is σ = 12443319748944. Its totient is φ = 12397161237120.

The previous prime is 12420234003409. The next prime is 12420234003469. The reversal of 12420234003431 is 13430043202421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12420234003431 is a prime.

It is a super-4 number, since 4×12420234003431⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12420234003394 and 12420234003403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420234003491) 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, 1328105 + ... + 5157938.

It is an arithmetic number, because the mean of its divisors is an integer number (1555414968618).

Almost surely, 2^{12420234003431} is an apocalyptic number.

12420234003431 is a deficient number, since it is larger than the sum of its proper divisors (23085745513).

12420234003431 is an equidigital number, since it uses as much as digits as its factorization.

12420234003431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6489601.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 12420234003431 its reverse (13430043202421), we get a palindrome (25850277205852).

The spelling of 12420234003431 in words is "twelve trillion, four hundred twenty billion, two hundred thirty-four million, three thousand, four hundred thirty-one".