123400141 has 4 divisors (see below), whose sum is σ = 124139232. Its totient is φ = 122661052.

The previous prime is 123400111. The next prime is 123400157. The reversal of 123400141 is 141004321.

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: 141004321 = 10427 ⋅13523.

It is a cyclic number.

It is not a de Polignac number, because 123400141 - 2⁹ = 123399629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123400111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369295 + ... + 369628.

It is an arithmetic number, because the mean of its divisors is an integer number (31034808).

Almost surely, 2^123400141 is an apocalyptic number.

It is an amenable number.

123400141 is a deficient number, since it is larger than the sum of its proper divisors (739091).

123400141 is an equidigital number, since it uses as much as digits as its factorization.

123400141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739090.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 123400141 is about 11108.5616080571. The cubic root of 123400141 is about 497.8576887815.

Adding to 123400141 its reverse (141004321), we get a palindrome (264404462).

The spelling of 123400141 in words is "one hundred twenty-three million, four hundred thousand, one hundred forty-one".