23120102321221 has 2 divisors, whose sum is σ = 23120102321222. Its totient is φ = 23120102321220.

The previous prime is 23120102321201. The next prime is 23120102321227. The reversal of 23120102321221 is 12212320102132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23037840050625 + 82262270596 = 4799775^2 + 286814^2 .

It is a cyclic number.

It is not a de Polignac number, because 23120102321221 - 2⁹ = 23120102320709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23120102321192 and 23120102321201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23120102321227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560051160610 + 11560051160611.

It is an arithmetic number, because the mean of its divisors is an integer number (11560051160611).

Almost surely, 2^{23120102321221} is an apocalyptic number.

It is an amenable number.

23120102321221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23120102321221 is an equidigital number, since it uses as much as digits as its factorization.

23120102321221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 23120102321221 its reverse (12212320102132), we get a palindrome (35332422423353).

The spelling of 23120102321221 in words is "twenty-three trillion, one hundred twenty billion, one hundred two million, three hundred twenty-one thousand, two hundred twenty-one".