243102000997 has 4 divisors (see below), whose sum is σ = 244593424480. Its totient is φ = 241610577516.

The previous prime is 243102000943. The next prime is 243102001003. The reversal of 243102000997 is 799000201342.

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 243102000997 - 2¹¹ = 243101998949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243102000937) 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, 745711497 + ... + 745711822.

It is an arithmetic number, because the mean of its divisors is an integer number (61148356120).

Almost surely, 2^243102000997 is an apocalyptic number.

It is an amenable number.

243102000997 is a deficient number, since it is larger than the sum of its proper divisors (1491423483).

243102000997 is a wasteful number, since it uses less digits than its factorization.

243102000997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491423482.

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 243102000997 in words is "two hundred forty-three billion, one hundred two million, nine hundred ninety-seven", and thus it is an aban number.