23201405311 has 16 divisors (see below), whose sum is σ = 27475568640. Its totient is φ = 19169428320.

The previous prime is 23201405309. The next prime is 23201405329. The reversal of 23201405311 is 11350410232.

It is a happy number.

It is not a de Polignac number, because 23201405311 - 2¹ = 23201405309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23201405371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29076 + ... + 217366.

It is an arithmetic number, because the mean of its divisors is an integer number (1717223040).

Almost surely, 2^23201405311 is an apocalyptic number.

23201405311 is a deficient number, since it is larger than the sum of its proper divisors (4274163329).

23201405311 is a wasteful number, since it uses less digits than its factorization.

23201405311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188934.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 23201405311 its reverse (11350410232), we get a palindrome (34551815543).

The spelling of 23201405311 in words is "twenty-three billion, two hundred one million, four hundred five thousand, three hundred eleven".