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124404144311 = 211589593101
BaseRepresentation
bin111001111011100010…
…0001001100010110111
3102220002221100022201102
41303313010021202313
54014234430104221
6133052300320315
711662564531166
oct1636704114267
9386087308642
10124404144311
1148839994a07
122013a84309b
13b96776b815
14604221d3dd
15338195c30b
hex1cf71098b7

124404144311 has 4 divisors (see below), whose sum is σ = 124993737624. Its totient is φ = 123814551000.

The previous prime is 124404144299. The next prime is 124404144313. The reversal of 124404144311 is 113441404421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113441404421 = 532140403857.

It is a cyclic number.

It is not a de Polignac number, because 124404144311 - 214 = 124404127927 is a prime.

It is a super-2 number, since 2×1244041443112 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124404144313) 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, 294796340 + ... + 294796761.

It is an arithmetic number, because the mean of its divisors is an integer number (31248434406).

Almost surely, 2124404144311 is an apocalyptic number.

124404144311 is a deficient number, since it is larger than the sum of its proper divisors (589593313).

124404144311 is an equidigital number, since it uses as much as digits as its factorization.

124404144311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589593312.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 124404144311 its reverse (113441404421), we get a palindrome (237845548732).

The spelling of 124404144311 in words is "one hundred twenty-four billion, four hundred four million, one hundred forty-four thousand, three hundred eleven".

Divisors: 1 211 589593101 124404144311