400124231471 has 2 divisors, whose sum is σ = 400124231472. Its totient is φ = 400124231470.

The previous prime is 400124231443. The next prime is 400124231603. The reversal of 400124231471 is 174132421004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400124231471 - 2²² = 400120037167 is a prime.

It is a super-3 number, since 3×400124231471³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400129231471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200062115735 + 200062115736.

It is an arithmetic number, because the mean of its divisors is an integer number (200062115736).

Almost surely, 2^400124231471 is an apocalyptic number.

400124231471 is a deficient number, since it is larger than the sum of its proper divisors (1).

400124231471 is an equidigital number, since it uses as much as digits as its factorization.

400124231471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

Adding to 400124231471 its reverse (174132421004), we get a palindrome (574256652475).

The spelling of 400124231471 in words is "four hundred billion, one hundred twenty-four million, two hundred thirty-one thousand, four hundred seventy-one".