250242133123 has 4 divisors (see below), whose sum is σ = 250250689480. Its totient is φ = 250233576768.

The previous prime is 250242133091. The next prime is 250242133151. The reversal of 250242133123 is 321331242052.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 250242133123 - 2⁵ = 250242133091 is a prime.

It is a super-2 number, since 2×250242133123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 250242133091 and 250242133100.

It is not an unprimeable number, because it can be changed into a prime (250242133223) 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, 4234158 + ... + 4292851.

It is an arithmetic number, because the mean of its divisors is an integer number (62562672370).

Almost surely, 2^250242133123 is an apocalyptic number.

250242133123 is a deficient number, since it is larger than the sum of its proper divisors (8556357).

250242133123 is an equidigital number, since it uses as much as digits as its factorization.

250242133123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8556356.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 250242133123 its reverse (321331242052), we get a palindrome (571573375175).

The spelling of 250242133123 in words is "two hundred fifty billion, two hundred forty-two million, one hundred thirty-three thousand, one hundred twenty-three".