23002020311 has 4 divisors (see below), whose sum is σ = 23038474224. Its totient is φ = 22965566400.

The previous prime is 23002020287. The next prime is 23002020329. The reversal of 23002020311 is 11302020032.

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 23002020311 - 2⁶ = 23002020247 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 (23002020341) 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, 18226010 + ... + 18227271.

It is an arithmetic number, because the mean of its divisors is an integer number (5759618556).

Almost surely, 2^23002020311 is an apocalyptic number.

23002020311 is a deficient number, since it is larger than the sum of its proper divisors (36453913).

23002020311 is an equidigital number, since it uses as much as digits as its factorization.

23002020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36453912.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 23002020311 its reverse (11302020032), we get a palindrome (34304040343).

The spelling of 23002020311 in words is "twenty-three billion, two million, twenty thousand, three hundred eleven".