20101000541 has 6 divisors (see below), whose sum is σ = 20287117242. Its totient is φ = 19916575920.

The previous prime is 20101000531. The next prime is 20101000567. The reversal of 20101000541 is 14500010102.

It can be written as a sum of positive squares in 3 ways, for example, as 9743664100 + 10357336441 = 98710^2 + 101771^2 .

It is not a de Polignac number, because 20101000541 - 2¹⁸ = 20100738397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101000531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 834050 + ... + 857811.

It is an arithmetic number, because the mean of its divisors is an integer number (3381186207).

Almost surely, 2^20101000541 is an apocalyptic number.

It is an amenable number.

20101000541 is a deficient number, since it is larger than the sum of its proper divisors (186116701).

20101000541 is an equidigital number, since it uses as much as digits as its factorization.

20101000541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692079 (or 1691970 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 20101000541 its reverse (14500010102), we get a palindrome (34601010643).

The spelling of 20101000541 in words is "twenty billion, one hundred one million, five hundred forty-one", and thus it is an aban number.