20232436511 has 4 divisors (see below), whose sum is σ = 23122784592. Its totient is φ = 17342088432.

The previous prime is 20232436417. The next prime is 20232436513. The reversal of 20232436511 is 11563423202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20232436511 - 2¹⁴ = 20232420127 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 (20232436513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1445174030 + ... + 1445174043.

It is an arithmetic number, because the mean of its divisors is an integer number (5780696148).

Almost surely, 2^20232436511 is an apocalyptic number.

20232436511 is a deficient number, since it is larger than the sum of its proper divisors (2890348081).

20232436511 is an equidigital number, since it uses as much as digits as its factorization.

20232436511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890348080.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 20232436511 its reverse (11563423202), we get a palindrome (31795859713).

The spelling of 20232436511 in words is "twenty billion, two hundred thirty-two million, four hundred thirty-six thousand, five hundred eleven".