20123210401 has 8 divisors (see below), whose sum is σ = 22998898944. Its totient is φ = 17247757920.

The previous prime is 20123210353. The next prime is 20123210431. The reversal of 20123210401 is 10401232102.

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

It is a cyclic number.

It is not a de Polignac number, because 20123210401 - 2⁹ = 20123209889 is a prime.

It is a super-3 number, since 3×20123210401³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20123210431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198696 + ... + 282358.

It is an arithmetic number, because the mean of its divisors is an integer number (2874862368).

Almost surely, 2^20123210401 is an apocalyptic number.

It is an amenable number.

20123210401 is a deficient number, since it is larger than the sum of its proper divisors (2875688543).

20123210401 is an equidigital number, since it uses as much as digits as its factorization.

20123210401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118031.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20123210401 its reverse (10401232102), we get a palindrome (30524442503).

The spelling of 20123210401 in words is "twenty billion, one hundred twenty-three million, two hundred ten thousand, four hundred one".