123206131641 has 16 divisors (see below), whose sum is σ = 168513141888. Its totient is φ = 80023785600.

The previous prime is 123206131547. The next prime is 123206131649. The reversal of 123206131641 is 146131602321.

It is not a de Polignac number, because 123206131641 - 2¹⁰ = 123206130617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123206131599 and 123206131608.

It is not an unprimeable number, because it can be changed into a prime (123206131649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 599490 + ... + 778331.

It is an arithmetic number, because the mean of its divisors is an integer number (10532071368).

Almost surely, 2^123206131641 is an apocalyptic number.

It is an amenable number.

123206131641 is a deficient number, since it is larger than the sum of its proper divisors (45307010247).

123206131641 is a wasteful number, since it uses less digits than its factorization.

123206131641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378592.

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 123206131641 its reverse (146131602321), we get a palindrome (269337733962).

The spelling of 123206131641 in words is "one hundred twenty-three billion, two hundred six million, one hundred thirty-one thousand, six hundred forty-one".