123201985288 has 16 divisors (see below), whose sum is σ = 241047362880. Its totient is φ = 58922688528.

The previous prime is 123201985243. The next prime is 123201985289. The reversal of 123201985288 is 882589102321.

It is not an unprimeable number, because it can be changed into a prime (123201985289) 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, 334787820 + ... + 334788187.

It is an arithmetic number, because the mean of its divisors is an integer number (15065460180).

Almost surely, 2^123201985288 is an apocalyptic number.

It is an amenable number.

123201985288 is a deficient number, since it is larger than the sum of its proper divisors (117845377592).

123201985288 is a wasteful number, since it uses less digits than its factorization.

123201985288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669576036 (or 669576032 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 49.

The spelling of 123201985288 in words is "one hundred twenty-three billion, two hundred one million, nine hundred eighty-five thousand, two hundred eighty-eight".