20310124321 has 2 divisors, whose sum is σ = 20310124322. Its totient is φ = 20310124320.

The previous prime is 20310124301. The next prime is 20310124333. The reversal of 20310124321 is 12342101302.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20050560000 + 259564321 = 141600^2 + 16111^2 .

It is a cyclic number.

It is not a de Polignac number, because 20310124321 - 2⁷ = 20310124193 is a prime.

It is a super-2 number, since 2×20310124321² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20310124301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155062160 + 10155062161.

It is an arithmetic number, because the mean of its divisors is an integer number (10155062161).

Almost surely, 2^20310124321 is an apocalyptic number.

It is an amenable number.

20310124321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20310124321 is an equidigital number, since it uses as much as digits as its factorization.

20310124321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20310124321 its reverse (12342101302), we get a palindrome (32652225623).

The spelling of 20310124321 in words is "twenty billion, three hundred ten million, one hundred twenty-four thousand, three hundred twenty-one".