123100541 has 4 divisors (see below), whose sum is σ = 123288000. Its totient is φ = 122913084.

The previous prime is 123100499. The next prime is 123100559. The reversal of 123100541 is 145001321.

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: 145001321 = 2857 ⋅50753.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123100541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123100441) 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, 92741 + ... + 94058.

It is an arithmetic number, because the mean of its divisors is an integer number (30822000).

Almost surely, 2^123100541 is an apocalyptic number.

It is an amenable number.

123100541 is a deficient number, since it is larger than the sum of its proper divisors (187459).

123100541 is an equidigital number, since it uses as much as digits as its factorization.

123100541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187458.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 123100541 is about 11095.0683188523. The cubic root of 123100541 is about 497.4544503469.

Adding to 123100541 its reverse (145001321), we get a palindrome (268101862).

The spelling of 123100541 in words is "one hundred twenty-three million, one hundred thousand, five hundred forty-one".