305132123000 has 32 divisors (see below), whose sum is σ = 714009170160. Its totient is φ = 122052848800.

The previous prime is 305132122993. The next prime is 305132123017. The reversal of 305132123000 is 321231503.

It is a super-2 number, since 2×305132123000² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 152565062 + ... + 152567061.

Almost surely, 2^305132123000 is an apocalyptic number.

It is an amenable number.

305132123000 is an abundant number, since it is smaller than the sum of its proper divisors (408877047160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305132123000 is a wasteful number, since it uses less digits than its factorization.

305132123000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305132144 (or 305132130 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 305132123000 its reverse (321231503), we get a palindrome (305453354503).

The spelling of 305132123000 in words is "three hundred five billion, one hundred thirty-two million, one hundred twenty-three thousand".