20125611427153 has 2 divisors, whose sum is σ = 20125611427154. Its totient is φ = 20125611427152.

The previous prime is 20125611427151. The next prime is 20125611427211. The reversal of 20125611427153 is 35172411652102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18326815446289 + 1798795980864 = 4280983^2 + 1341192^2 .

It is a cyclic number.

It is not a de Polignac number, because 20125611427153 - 2¹ = 20125611427151 is a prime.

Together with 20125611427151, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20125611427151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062805713576 + 10062805713577.

It is an arithmetic number, because the mean of its divisors is an integer number (10062805713577).

Almost surely, 2^{20125611427153} is an apocalyptic number.

It is an amenable number.

20125611427153 is a deficient number, since it is larger than the sum of its proper divisors (1).

20125611427153 is an equidigital number, since it uses as much as digits as its factorization.

20125611427153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 20125611427153 in words is "twenty trillion, one hundred twenty-five billion, six hundred eleven million, four hundred twenty-seven thousand, one hundred fifty-three".