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123102444201 = 31129268947837
BaseRepresentation
bin111001010100101111…
…0100011101010101001
3102202202012222002212020
41302221132203222221
54004103211203301
6132315200335053
711615410340142
oct1625136435251
9382665862766
10123102444201
11482311363a0
121ba36914489
13b7bab89a79
145d5b3b8ac9
153307533436
hex1ca97a3aa9

123102444201 has 32 divisors (see below), whose sum is σ = 185305276800. Its totient is φ = 72006574080.

The previous prime is 123102444191. The next prime is 123102444217. The reversal of 123102444201 is 102444201321.

It is not a de Polignac number, because 123102444201 - 25 = 123102444169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123102444251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2549455 + ... + 2597291.

It is an arithmetic number, because the mean of its divisors is an integer number (5790789900).

Almost surely, 2123102444201 is an apocalyptic number.

123102444201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123102444201 is a deficient number, since it is larger than the sum of its proper divisors (62202832599).

123102444201 is a wasteful number, since it uses less digits than its factorization.

123102444201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50569.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 123102444201 its reverse (102444201321), we get a palindrome (225546645522).

The spelling of 123102444201 in words is "one hundred twenty-three billion, one hundred two million, four hundred forty-four thousand, two hundred one".

Divisors: 1 3 11 29 33 87 319 957 2689 8067 29579 47837 77981 88737 143511 233943 526207 857791 1387273 1578621 2573373 4161819 15260003 45780009 128633693 385901079 1414970623 3730377097 4244911869 11191131291 41034148067 123102444201