23402133434421 has 24 divisors (see below), whose sum is σ = 38711420019584. Its totient is φ = 13345188423840.

The previous prime is 23402133434291. The next prime is 23402133434447. The reversal of 23402133434421 is 12443433120432.

23402133434421 is a `hidden beast` number, since 2 + 3 + 4 + 0 + 213 + 3 + 434 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 23402133434421 - 2²² = 23402129240117 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 (23402133434461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 381347590 + ... + 381408951.

Almost surely, 2^{23402133434421} is an apocalyptic number.

23402133434421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23402133434421 is a deficient number, since it is larger than the sum of its proper divisors (15309286585163).

23402133434421 is a wasteful number, since it uses less digits than its factorization.

23402133434421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762757041 (or 762757038 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 23402133434421 its reverse (12443433120432), we get a palindrome (35845566554853).

The spelling of 23402133434421 in words is "twenty-three trillion, four hundred two billion, one hundred thirty-three million, four hundred thirty-four thousand, four hundred twenty-one".