20920525103 has 2 divisors, whose sum is σ = 20920525104. Its totient is φ = 20920525102.

The previous prime is 20920525099. The next prime is 20920525121. The reversal of 20920525103 is 30152502902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20920525103 - 2² = 20920525099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20920524103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10460262551 + 10460262552.

It is an arithmetic number, because the mean of its divisors is an integer number (10460262552).

Almost surely, 2^20920525103 is an apocalyptic number.

20920525103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20920525103 is an equidigital number, since it uses as much as digits as its factorization.

20920525103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 20920525103 in words is "twenty billion, nine hundred twenty million, five hundred twenty-five thousand, one hundred three".