123402201 has 32 divisors (see below), whose sum is σ = 188496000. Its totient is φ = 71138304.

The previous prime is 123402173. The next prime is 123402203. The reversal of 123402201 is 102204321.

It is not a de Polignac number, because 123402201 - 2²⁶ = 56293337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123402203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247050 + ... + 247548.

It is an arithmetic number, because the mean of its divisors is an integer number (5890500).

Almost surely, 2^123402201 is an apocalyptic number.

It is an amenable number.

123402201 is a deficient number, since it is larger than the sum of its proper divisors (65093799).

123402201 is a wasteful number, since it uses less digits than its factorization.

123402201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 123402201 is about 11108.6543289455. The cubic root of 123402201 is about 497.8604591217.

Adding to 123402201 its reverse (102204321), we get a palindrome (225606522).

It can be divided in two parts, 12340 and 2201, that added together give a palindrome (14541).

The spelling of 123402201 in words is "one hundred twenty-three million, four hundred two thousand, two hundred one".