20483003521 has 2 divisors, whose sum is σ = 20483003522. Its totient is φ = 20483003520.

The previous prime is 20483003477. The next prime is 20483003551. The reversal of 20483003521 is 12530038402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19237690000 + 1245313521 = 138700^2 + 35289^2 .

It is a cyclic number.

It is not a de Polignac number, because 20483003521 - 2⁷ = 20483003393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20483003521.

It is not a weakly prime, because it can be changed into another prime (20483003551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10241501760 + 10241501761.

It is an arithmetic number, because the mean of its divisors is an integer number (10241501761).

Almost surely, 2^20483003521 is an apocalyptic number.

It is an amenable number.

20483003521 is a deficient number, since it is larger than the sum of its proper divisors (1).

20483003521 is an equidigital number, since it uses as much as digits as its factorization.

20483003521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 20483003521 in words is "twenty billion, four hundred eighty-three million, three thousand, five hundred twenty-one".