2101011541 has 4 divisors (see below), whose sum is σ = 2101422400. Its totient is φ = 2100600684.

The previous prime is 2101011491. The next prime is 2101011547. The reversal of 2101011541 is 1451101012.

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 a cyclic number.

It is not a de Polignac number, because 2101011541 - 2¹⁵ = 2100978773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101011547) 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, 197661 + ... + 208018.

It is an arithmetic number, because the mean of its divisors is an integer number (525355600).

Almost surely, 2^2101011541 is an apocalyptic number.

It is an amenable number.

2101011541 is a deficient number, since it is larger than the sum of its proper divisors (410859).

2101011541 is an equidigital number, since it uses as much as digits as its factorization.

2101011541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410858.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 2101011541 is about 45836.7924379532. The cubic root of 2101011541 is about 1280.7847444160.

Adding to 2101011541 its reverse (1451101012), we get a palindrome (3552112553).

The spelling of 2101011541 in words is "two billion, one hundred one million, eleven thousand, five hundred forty-one".