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13001110123 = 83156639881
BaseRepresentation
bin11000001101110110…
…10011001001101011
31020120001212211021011
430012323103021223
5203111241010443
65550030524351
7640115420101
oct140673231153
936501784234
1013001110123
115571873511
12262a0666b7
1312c26a0091
148b4977c71
155115c0b9d
hex306ed326b

13001110123 has 4 divisors (see below), whose sum is σ = 13157750088. Its totient is φ = 12844470160.

The previous prime is 13001110099. The next prime is 13001110159. The reversal of 13001110123 is 32101110031.

Adding to 13001110123 its reverse (32101110031), we get a palindrome (45102220154).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32101110031 = 95369336599.

It is a cyclic number.

It is not a de Polignac number, because 13001110123 - 25 = 13001110091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13001110223) 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, 78319858 + ... + 78320023.

It is an arithmetic number, because the mean of its divisors is an integer number (3289437522).

Almost surely, 213001110123 is an apocalyptic number.

13001110123 is a deficient number, since it is larger than the sum of its proper divisors (156639965).

13001110123 is an equidigital number, since it uses as much as digits as its factorization.

13001110123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156639964.

The product of its (nonzero) digits is 18, while the sum is 13.

The spelling of 13001110123 in words is "thirteen billion, one million, one hundred ten thousand, one hundred twenty-three".

Divisors: 1 83 156639881 13001110123