20630310501 has 4 divisors (see below), whose sum is σ = 27507080672. Its totient is φ = 13753540332.

The previous prime is 20630310451. The next prime is 20630310517. The reversal of 20630310501 is 10501303602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20630310501 - 2¹⁴ = 20630294117 is a prime.

It is a super-2 number, since 2×20630310501² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20630310521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3438385081 + ... + 3438385086.

It is an arithmetic number, because the mean of its divisors is an integer number (6876770168).

Almost surely, 2^20630310501 is an apocalyptic number.

It is an amenable number.

20630310501 is a deficient number, since it is larger than the sum of its proper divisors (6876770171).

20630310501 is an equidigital number, since it uses as much as digits as its factorization.

20630310501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6876770170.

The product of its (nonzero) digits is 540, while the sum is 21.

The spelling of 20630310501 in words is "twenty billion, six hundred thirty million, three hundred ten thousand, five hundred one".