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123102223201 = 196479064379
BaseRepresentation
bin111001010100101110…
…1101101101101100001
3102202202012112212201001
41302221131231231201
54004103132120301
6132315151512001
711615405426626
oct1625135555541
9382665485631
10123102223201
1148230aa5351
121ba36828601
13b7bab102b9
145d5b35c34d
1533074dcc01
hex1ca976db61

123102223201 has 4 divisors (see below), whose sum is σ = 129581287600. Its totient is φ = 116623158804.

The previous prime is 123102223171. The next prime is 123102223207. The reversal of 123102223201 is 102322201321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102322201321 = 571179198251.

It is a cyclic number.

It is not a de Polignac number, because 123102223201 - 215 = 123102190433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 6479064379 = 123102223201 / (1 + 2 + 3 + 1 + 0 + 2 + 2 + 2 + 3 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123102223207) 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, 3239532171 + ... + 3239532208.

It is an arithmetic number, because the mean of its divisors is an integer number (32395321900).

Almost surely, 2123102223201 is an apocalyptic number.

It is an amenable number.

123102223201 is a deficient number, since it is larger than the sum of its proper divisors (6479064399).

123102223201 is an equidigital number, since it uses as much as digits as its factorization.

123102223201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479064398.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123102223201 its reverse (102322201321), we get a palindrome (225424424522).

The spelling of 123102223201 in words is "one hundred twenty-three billion, one hundred two million, two hundred twenty-three thousand, two hundred one".

Divisors: 1 19 6479064379 123102223201