20003950263109 has 8 divisors (see below), whose sum is σ = 20281187511000. Its totient is φ = 19726799786496.

The previous prime is 20003950263091. The next prime is 20003950263119. The reversal of 20003950263109 is 90136205930002.

It can be written as a sum of positive squares in 4 ways, for example, as 5023412242209 + 14980538020900 = 2241297^2 + 3870470^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20003950263109 - 2⁷ = 20003950262981 is a prime.

It is a super-2 number, since 2×20003950263109² (a number of 27 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 (20003950263119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21228484 + ... + 22150765.

It is an arithmetic number, because the mean of its divisors is an integer number (2535148438875).

Almost surely, 2^{20003950263109} is an apocalyptic number.

It is an amenable number.

20003950263109 is a deficient number, since it is larger than the sum of its proper divisors (277237247891).

20003950263109 is an equidigital number, since it uses as much as digits as its factorization.

20003950263109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43385639.

The product of its (nonzero) digits is 87480, while the sum is 40.

The spelling of 20003950263109 in words is "twenty trillion, three billion, nine hundred fifty million, two hundred sixty-three thousand, one hundred nine".