10020520403 has 2 divisors, whose sum is σ = 10020520404. Its totient is φ = 10020520402.

The previous prime is 10020520397. The next prime is 10020520421. The reversal of 10020520403 is 30402502001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10020520403 - 2¹² = 10020516307 is a prime.

It is not a weakly prime, because it can be changed into another prime (10020520483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010260201 + 5010260202.

It is an arithmetic number, because the mean of its divisors is an integer number (5010260202).

Almost surely, 2^10020520403 is an apocalyptic number.

10020520403 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020520403 is an equidigital number, since it uses as much as digits as its factorization.

10020520403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The spelling of 10020520403 in words is "ten billion, twenty million, five hundred twenty thousand, four hundred three".