20629020403 has 2 divisors, whose sum is σ = 20629020404. Its totient is φ = 20629020402.

The previous prime is 20629020397. The next prime is 20629020421. The reversal of 20629020403 is 30402092602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20629020403 - 2¹³ = 20629012211 is a prime.

It is not a weakly prime, because it can be changed into another prime (20629020703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10314510201 + 10314510202.

It is an arithmetic number, because the mean of its divisors is an integer number (10314510202).

Almost surely, 2^20629020403 is an apocalyptic number.

20629020403 is a deficient number, since it is larger than the sum of its proper divisors (1).

20629020403 is an equidigital number, since it uses as much as digits as its factorization.

20629020403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 20629020403 in words is "twenty billion, six hundred twenty-nine million, twenty thousand, four hundred three".