20323131401 has 8 divisors (see below), whose sum is σ = 20415705408. Its totient is φ = 20230650000.

The previous prime is 20323131383. The next prime is 20323131403. The reversal of 20323131401 is 10413132302.

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 20323131401 - 2¹⁸ = 20322869257 is a prime.

It is a super-3 number, since 3×20323131401³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20323131403) 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, 437471 + ... + 481691.

It is an arithmetic number, because the mean of its divisors is an integer number (2551963176).

Almost surely, 2^20323131401 is an apocalyptic number.

It is an amenable number.

20323131401 is a deficient number, since it is larger than the sum of its proper divisors (92574007).

20323131401 is a wasteful number, since it uses less digits than its factorization.

20323131401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46303.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20323131401 its reverse (10413132302), we get a palindrome (30736263703).

Subtracting from 20323131401 its reverse (10413132302), we obtain a palindrome (9909999099).

The spelling of 20323131401 in words is "twenty billion, three hundred twenty-three million, one hundred thirty-one thousand, four hundred one".