20123410021007 has 2 divisors, whose sum is σ = 20123410021008. Its totient is φ = 20123410021006.

The previous prime is 20123410020979. The next prime is 20123410021027. The reversal of 20123410021007 is 70012001432102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20123410021007 - 2¹⁴ = 20123410004623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20123410021027) 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 as a sum of consecutive naturals, namely, 10061705010503 + 10061705010504.

It is an arithmetic number, because the mean of its divisors is an integer number (10061705010504).

Almost surely, 2^{20123410021007} is an apocalyptic number.

20123410021007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123410021007 is an equidigital number, since it uses as much as digits as its factorization.

20123410021007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 20123410021007 its reverse (70012001432102), we get a palindrome (90135411453109).

The spelling of 20123410021007 in words is "twenty trillion, one hundred twenty-three billion, four hundred ten million, twenty-one thousand, seven".