20123442201 has 8 divisors (see below), whose sum is σ = 26835315840. Its totient is φ = 13413598352.

The previous prime is 20123442149. The next prime is 20123442211. The reversal of 20123442201 is 10224432102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20123442201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20123442211) 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 7 ways as a sum of consecutive naturals, for example, 484161 + ... + 524078.

It is an arithmetic number, because the mean of its divisors is an integer number (3354414480).

Almost surely, 2^20123442201 is an apocalyptic number.

It is an amenable number.

20123442201 is a deficient number, since it is larger than the sum of its proper divisors (6711873639).

20123442201 is a wasteful number, since it uses less digits than its factorization.

20123442201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014895.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20123442201 its reverse (10224432102), we get a palindrome (30347874303).

The spelling of 20123442201 in words is "twenty billion, one hundred twenty-three million, four hundred forty-two thousand, two hundred one".