20103474551 has 2 divisors, whose sum is σ = 20103474552. Its totient is φ = 20103474550.

The previous prime is 20103474539. The next prime is 20103474557. The reversal of 20103474551 is 15547430102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20103474551 - 2²² = 20099280247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20103474557) 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, 10051737275 + 10051737276.

It is an arithmetic number, because the mean of its divisors is an integer number (10051737276).

Almost surely, 2^20103474551 is an apocalyptic number.

20103474551 is a deficient number, since it is larger than the sum of its proper divisors (1).

20103474551 is an equidigital number, since it uses as much as digits as its factorization.

20103474551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 20103474551 in words is "twenty billion, one hundred three million, four hundred seventy-four thousand, five hundred fifty-one".