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12401041431 = 34133680477
BaseRepresentation
bin10111000110010100…
…01110000000010111
31012000020202011202210
423203022032000113
5200344131311211
65410313204503
7616211053512
oct134312160027
935006664683
1012401041431
115294078a79
1224a1100733
13122827c14c
14858db3d79
154c8a8c9a6
hex2e328e017

12401041431 has 4 divisors (see below), whose sum is σ = 16534721912. Its totient is φ = 8267360952.

The previous prime is 12401041363. The next prime is 12401041441. The reversal of 12401041431 is 13414010421.

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

It is not a de Polignac number, because 12401041431 - 29 = 12401040919 is a prime.

It is a super-2 number, since 2×124010414312 (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 = 12401041398 and 12401041407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401041441) 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, 2066840236 + ... + 2066840241.

It is an arithmetic number, because the mean of its divisors is an integer number (4133680478).

Almost surely, 212401041431 is an apocalyptic number.

12401041431 is a deficient number, since it is larger than the sum of its proper divisors (4133680481).

12401041431 is an equidigital number, since it uses as much as digits as its factorization.

12401041431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4133680480.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12401041431 its reverse (13414010421), we get a palindrome (25815051852).

The spelling of 12401041431 in words is "twelve billion, four hundred one million, forty-one thousand, four hundred thirty-one".

Divisors: 1 3 4133680477 12401041431