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12403403244031 = 293151713570567
BaseRepresentation
bin1011010001111110010001…
…1100011100000111111111
31121220202100111110011221111
42310133210130130013333
53111204132212302111
642214013401342451
72420054616011542
oct264374434340777
947822314404844
1012403403244031
113a52287858878
121483a42797a27
136bc83611b497
1430c483b54859
151679934b2a21
hexb47e471c1ff

12403403244031 has 8 divisors (see below), whose sum is σ = 12831514866720. Its totient is φ = 11975318825568.

The previous prime is 12403403243951. The next prime is 12403403244041. The reversal of 12403403244031 is 13044230430421.

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 2k-12403403244031 is a prime.

It is a super-2 number, since 2×124034032440312 (a number of 27 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 = 12403403243984 and 12403403244002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403403244041) 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, 5871291 + ... + 7699276.

It is an arithmetic number, because the mean of its divisors is an integer number (1603939358340).

Almost surely, 212403403244031 is an apocalyptic number.

12403403244031 is a deficient number, since it is larger than the sum of its proper divisors (428111622689).

12403403244031 is a wasteful number, since it uses less digits than its factorization.

12403403244031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13602113.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 12403403244031 its reverse (13044230430421), we get a palindrome (25447633674452).

The spelling of 12403403244031 in words is "twelve trillion, four hundred three billion, four hundred three million, two hundred forty-four thousand, thirty-one".

Divisors: 1 29 31517 913993 13570567 393546443 427703560139 12403403244031