123031320201 has 16 divisors (see below), whose sum is σ = 182674584000. Its totient is φ = 81838197504.

The previous prime is 123031320197. The next prime is 123031320221. The reversal of 123031320201 is 102023130321.

It is not a de Polignac number, because 123031320201 - 2² = 123031320197 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123031320221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5062171 + ... + 5086416.

It is an arithmetic number, because the mean of its divisors is an integer number (11417161500).

Almost surely, 2^123031320201 is an apocalyptic number.

It is an amenable number.

123031320201 is a deficient number, since it is larger than the sum of its proper divisors (59643263799).

123031320201 is a wasteful number, since it uses less digits than its factorization.

123031320201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10149045 (or 10149039 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 123031320201 its reverse (102023130321), we get a palindrome (225054450522).

The spelling of 123031320201 in words is "one hundred twenty-three billion, thirty-one million, three hundred twenty thousand, two hundred one".