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122030323 = 431283133
BaseRepresentation
bin1110100011000…
…00100011110011
322111121210010121
413101200203303
5222214432243
620035311111
73011145352
oct721404363
9274553117
10122030323
1162979208
1234a4b497
131c3880bc
14122c7999
15aaa71ed
hex74608f3

122030323 has 4 divisors (see below), whose sum is σ = 122313888. Its totient is φ = 121746760.

The previous prime is 122030297. The next prime is 122030333. The reversal of 122030323 is 323030221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323030221 = 811398311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122030323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122030297 and 122030306.

It is not an unprimeable number, because it can be changed into a prime (122030333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141136 + ... + 141997.

It is an arithmetic number, because the mean of its divisors is an integer number (30578472).

Almost surely, 2122030323 is an apocalyptic number.

122030323 is a deficient number, since it is larger than the sum of its proper divisors (283565).

122030323 is an equidigital number, since it uses as much as digits as its factorization.

122030323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283564.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 122030323 is about 11046.7335896182. The cubic root of 122030323 is about 496.0086537577.

Adding to 122030323 its reverse (323030221), we get a palindrome (445060544).

The spelling of 122030323 in words is "one hundred twenty-two million, thirty thousand, three hundred twenty-three".

Divisors: 1 431 283133 122030323