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123430141 is a prime number
BaseRepresentation
bin1110101101101…
…10010011111101
322121020220022201
413112312103331
5223044231031
620125311501
73026065432
oct726662375
9277226281
10123430141
116374498a
1235405591
131c7582b3
141256db89
15ac81d61
hex75b64fd

123430141 has 2 divisors, whose sum is σ = 123430142. Its totient is φ = 123430140.

The previous prime is 123430133. The next prime is 123430169. The reversal of 123430141 is 141034321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103449241 + 19980900 = 10171^2 + 4470^2 .

It is a cyclic number.

It is not a de Polignac number, because 123430141 - 23 = 123430133 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123430841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61715070 + 61715071.

It is an arithmetic number, because the mean of its divisors is an integer number (61715071).

Almost surely, 2123430141 is an apocalyptic number.

It is an amenable number.

123430141 is a deficient number, since it is larger than the sum of its proper divisors (1).

123430141 is an equidigital number, since it uses as much as digits as its factorization.

123430141 is an evil number, because the sum of its binary digits is even.

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

The square root of 123430141 is about 11109.9118358338. The cubic root of 123430141 is about 497.8980304979.

Adding to 123430141 its reverse (141034321), we get a palindrome (264464462).

It can be divided in two parts, 1234 and 30141, that added together give a triangular number (31375 = T250).

The spelling of 123430141 in words is "one hundred twenty-three million, four hundred thirty thousand, one hundred forty-one".