23211413421 has 8 divisors (see below), whose sum is σ = 35369772864. Its totient is φ = 13263664800.

The previous prime is 23211413411. The next prime is 23211413429. The reversal of 23211413421 is 12431411232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23211413421 - 2¹¹ = 23211411373 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23211413391 and 23211413400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23211413429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552652680 + ... + 552652721.

It is an arithmetic number, because the mean of its divisors is an integer number (4421221608).

Almost surely, 2^23211413421 is an apocalyptic number.

23211413421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23211413421 is a deficient number, since it is larger than the sum of its proper divisors (12158359443).

23211413421 is a wasteful number, since it uses less digits than its factorization.

23211413421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105305411.

The product of its digits is 1152, while the sum is 24.

Adding to 23211413421 its reverse (12431411232), we get a palindrome (35642824653).

The spelling of 23211413421 in words is "twenty-three billion, two hundred eleven million, four hundred thirteen thousand, four hundred twenty-one".