123124235401 has 4 divisors (see below), whose sum is σ = 125743900032. Its totient is φ = 120504570772.

The previous prime is 123124235359. The next prime is 123124235407. The reversal of 123124235401 is 104532421321.

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.

It is a cyclic number.

It is not a de Polignac number, because 123124235401 - 2¹³ = 123124227209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123124235401.

It is not an unprimeable number, because it can be changed into a prime (123124235407) 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, 1309832245 + ... + 1309832338.

It is an arithmetic number, because the mean of its divisors is an integer number (31435975008).

Almost surely, 2^123124235401 is an apocalyptic number.

It is an amenable number.

123124235401 is a deficient number, since it is larger than the sum of its proper divisors (2619664631).

123124235401 is an equidigital number, since it uses as much as digits as its factorization.

123124235401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619664630.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 123124235401 its reverse (104532421321), we get a palindrome (227656656722).

The spelling of 123124235401 in words is "one hundred twenty-three billion, one hundred twenty-four million, two hundred thirty-five thousand, four hundred one".