20210464903 has 2 divisors, whose sum is σ = 20210464904. Its totient is φ = 20210464902.

The previous prime is 20210464889. The next prime is 20210464951. The reversal of 20210464903 is 30946401202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20210464903 - 2⁵ = 20210464871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20210464993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105232451 + 10105232452.

It is an arithmetic number, because the mean of its divisors is an integer number (10105232452).

Almost surely, 2^20210464903 is an apocalyptic number.

20210464903 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210464903 is an equidigital number, since it uses as much as digits as its factorization.

20210464903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 20210464903 in words is "twenty billion, two hundred ten million, four hundred sixty-four thousand, nine hundred three".