23011421433 has 192 divisors, whose sum is σ = 43259443200. Its totient is φ = 10556282880.

The previous prime is 23011421429. The next prime is 23011421441. The reversal of 23011421433 is 33412411032.

It is a happy number.

It is not a de Polignac number, because 23011421433 - 2² = 23011421429 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23011421443) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 128555338 + ... + 128555516.

It is an arithmetic number, because the mean of its divisors is an integer number (225309600).

Almost surely, 2^23011421433 is an apocalyptic number.

It is an amenable number.

23011421433 is a deficient number, since it is larger than the sum of its proper divisors (20248021767).

23011421433 is a wasteful number, since it uses less digits than its factorization.

23011421433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 23011421433 its reverse (33412411032), we get a palindrome (56423832465).

It can be divided in two parts, 23011 and 421433, that added together give a palindrome (444444).

The spelling of 23011421433 in words is "twenty-three billion, eleven million, four hundred twenty-one thousand, four hundred thirty-three".