20123012153 has 2 divisors, whose sum is σ = 20123012154. Its totient is φ = 20123012152.

The previous prime is 20123012111. The next prime is 20123012171. The reversal of 20123012153 is 35121032102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17117012224 + 3005999929 = 130832^2 + 54827^2 .

It is a cyclic number.

It is not a de Polignac number, because 20123012153 - 2¹⁴ = 20122995769 is a prime.

It is not a weakly prime, because it can be changed into another prime (20123012053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061506076 + 10061506077.

It is an arithmetic number, because the mean of its divisors is an integer number (10061506077).

Almost surely, 2^20123012153 is an apocalyptic number.

It is an amenable number.

20123012153 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123012153 is an equidigital number, since it uses as much as digits as its factorization.

20123012153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 20123012153 its reverse (35121032102), we get a palindrome (55244044255).

The spelling of 20123012153 in words is "twenty billion, one hundred twenty-three million, twelve thousand, one hundred fifty-three".