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123222320401 = 1151107056751
BaseRepresentation
bin111001011000010011…
…1110110010100010001
3102210001120112110002111
41302300213312110101
54004324403223101
6132335121545321
711621364304345
oct1626047662421
9383046473074
10123222320401
1148292873134
121ba6aaa5241
13b80996c52b
145d6d2a1625
153312d12251
hex1cb09f6511

123222320401 has 4 divisors (see below), whose sum is σ = 123329378304. Its totient is φ = 123115262500.

The previous prime is 123222320387. The next prime is 123222320461. The reversal of 123222320401 is 104023222321.

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: 104023222321 = 236867439163.

It is a cyclic number.

It is not a de Polignac number, because 123222320401 - 211 = 123222318353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123222320461) 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, 53527225 + ... + 53529526.

It is an arithmetic number, because the mean of its divisors is an integer number (30832344576).

Almost surely, 2123222320401 is an apocalyptic number.

It is an amenable number.

123222320401 is a deficient number, since it is larger than the sum of its proper divisors (107057903).

123222320401 is a wasteful number, since it uses less digits than its factorization.

123222320401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107057902.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 123222320401 its reverse (104023222321), we get a palindrome (227245542722).

The spelling of 123222320401 in words is "one hundred twenty-three billion, two hundred twenty-two million, three hundred twenty thousand, four hundred one".

Divisors: 1 1151 107056751 123222320401