23220021402321 has 32 divisors (see below), whose sum is σ = 32417925795072. Its totient is φ = 14755776921600.

The previous prime is 23220021402313. The next prime is 23220021402323. The reversal of 23220021402321 is 12320412002232.

It is not a de Polignac number, because 23220021402321 - 2³ = 23220021402313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23220021402291 and 23220021402300.

It is not an unprimeable number, because it can be changed into a prime (23220021402323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38697831 + ... + 39293283.

It is an arithmetic number, because the mean of its divisors is an integer number (1013060181096).

Almost surely, 2^{23220021402321} is an apocalyptic number.

It is an amenable number.

23220021402321 is a deficient number, since it is larger than the sum of its proper divisors (9197904392751).

23220021402321 is a wasteful number, since it uses less digits than its factorization.

23220021402321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597433.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 23220021402321 its reverse (12320412002232), we get a palindrome (35540433404553).

The spelling of 23220021402321 in words is "twenty-three trillion, two hundred twenty billion, twenty-one million, four hundred two thousand, three hundred twenty-one".