243121193004 has 24 divisors (see below), whose sum is σ = 567515631088. Its totient is φ = 81007133760.

The previous prime is 243121192981. The next prime is 243121193053. The reversal of 243121193004 is 400391121342.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4127527 + ... + 4186014.

Almost surely, 2^243121193004 is an apocalyptic number.

It is an amenable number.

243121193004 is an abundant number, since it is smaller than the sum of its proper divisors (324394438084).

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

243121193004 is a wasteful number, since it uses less digits than its factorization.

243121193004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8315985 (or 8315983 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 243121193004 in words is "two hundred forty-three billion, one hundred twenty-one million, one hundred ninety-three thousand, four".