123347989089 has 24 divisors (see below), whose sum is σ = 191916698792. Its totient is φ = 75889820160.

The previous prime is 123347989087. The next prime is 123347989109. The reversal of 123347989089 is 980989743321.

123347989089 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 479 + 89 + 0 + 89 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 281736225 + 123066252864 = 16785^2 + 350808^2 .

It is not a de Polignac number, because 123347989089 - 2¹ = 123347989087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123347989087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 431679 + ... + 658059.

Almost surely, 2^123347989089 is an apocalyptic number.

It is an amenable number.

123347989089 is a deficient number, since it is larger than the sum of its proper divisors (68568709703).

123347989089 is a wasteful number, since it uses less digits than its factorization.

123347989089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231057 (or 231054 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 123347989089 in words is "one hundred twenty-three billion, three hundred forty-seven million, nine hundred eighty-nine thousand, eighty-nine".