210123123201 has 12 divisors (see below), whose sum is σ = 303516188820. Its totient is φ = 140079769440.

The previous prime is 210123123181. The next prime is 210123123209. The reversal of 210123123201 is 102321321012.

210123123201 is a `hidden beast` number, since 21 + 0 + 12 + 312 + 320 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 60567671025 + 149555452176 = 246105^2 + 386724^2 .

It is not a de Polignac number, because 210123123201 - 2⁵ = 210123123169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210123123209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522331 + ... + 832511.

It is an arithmetic number, because the mean of its divisors is an integer number (25293015735).

Almost surely, 2^210123123201 is an apocalyptic number.

It is an amenable number.

210123123201 is a deficient number, since it is larger than the sum of its proper divisors (93393065619).

210123123201 is a wasteful number, since it uses less digits than its factorization.

210123123201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385456 (or 385453 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 210123123201 its reverse (102321321012), we get a palindrome (312444444213).

The spelling of 210123123201 in words is "two hundred ten billion, one hundred twenty-three million, one hundred twenty-three thousand, two hundred one".