20123130407 has 2 divisors, whose sum is σ = 20123130408. Its totient is φ = 20123130406.

The previous prime is 20123130389. The next prime is 20123130437. The reversal of 20123130407 is 70403132102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20123130407 - 2⁸ = 20123130151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20123130437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061565203 + 10061565204.

It is an arithmetic number, because the mean of its divisors is an integer number (10061565204).

Almost surely, 2^20123130407 is an apocalyptic number.

20123130407 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123130407 is an equidigital number, since it uses as much as digits as its factorization.

20123130407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 20123130407 its reverse (70403132102), we get a palindrome (90526262509).

The spelling of 20123130407 in words is "twenty billion, one hundred twenty-three million, one hundred thirty thousand, four hundred seven".