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123312413401 = 232695299429
BaseRepresentation
bin111001011010111111…
…1100001101011011001
3102210021212001122110021
41302311333201223121
54010020434212101
6132352100550441
711623540135222
oct1626577415331
9383255048407
10123312413401
1148329708361
121ba950b2421
13b8225248b8
145d7b234249
15331abab5a1
hex1cb5fe1ad9

123312413401 has 4 divisors (see below), whose sum is σ = 123317736100. Its totient is φ = 123307090704.

The previous prime is 123312413387. The next prime is 123312413449. The reversal of 123312413401 is 104314213321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104314213321 = 180615775661.

It can be written as a sum of positive squares in 2 ways, for example, as 100299523401 + 23012890000 = 316701^2 + 151700^2 .

It is a cyclic number.

It is not a de Polignac number, because 123312413401 - 29 = 123312412889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123312413101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2626446 + ... + 2672983.

It is an arithmetic number, because the mean of its divisors is an integer number (30829434025).

Almost surely, 2123312413401 is an apocalyptic number.

It is an amenable number.

123312413401 is a deficient number, since it is larger than the sum of its proper divisors (5322699).

123312413401 is an equidigital number, since it uses as much as digits as its factorization.

123312413401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5322698.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 123312413401 its reverse (104314213321), we get a palindrome (227626626722).

The spelling of 123312413401 in words is "one hundred twenty-three billion, three hundred twelve million, four hundred thirteen thousand, four hundred one".

Divisors: 1 23269 5299429 123312413401