23001212431421 has 8 divisors (see below), whose sum is σ = 26288289075840. Its totient is φ = 19714433075568.

The previous prime is 23001212431367. The next prime is 23001212431481. The reversal of 23001212431421 is 12413421210032.

It is a happy number.

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

It is not a de Polignac number, because 23001212431421 - 2¹⁸ = 23001212169277 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 (23001212431481) 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 7 ways as a sum of consecutive naturals, for example, 74156321 + ... + 74465846.

It is an arithmetic number, because the mean of its divisors is an integer number (3286036134480).

Almost surely, 2^{23001212431421} is an apocalyptic number.

It is an amenable number.

23001212431421 is a deficient number, since it is larger than the sum of its proper divisors (3287076644419).

23001212431421 is a wasteful number, since it uses less digits than its factorization.

23001212431421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148644283.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 23001212431421 its reverse (12413421210032), we get a palindrome (35414633641453).

The spelling of 23001212431421 in words is "twenty-three trillion, one billion, two hundred twelve million, four hundred thirty-one thousand, four hundred twenty-one".