2101131133 has 4 divisors (see below), whose sum is σ = 2224727100. Its totient is φ = 1977535168.

The previous prime is 2101131101. The next prime is 2101131143. The reversal of 2101131133 is 3311311012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1270423449 + 830707684 = 35643^2 + 28822^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101131133 - 2⁵ = 2101131101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101131143) 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, 61797958 + ... + 61797991.

It is an arithmetic number, because the mean of its divisors is an integer number (556181775).

Almost surely, 2^2101131133 is an apocalyptic number.

It is an amenable number.

2101131133 is a deficient number, since it is larger than the sum of its proper divisors (123595967).

2101131133 is a wasteful number, since it uses less digits than its factorization.

2101131133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123595966.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 2101131133 is about 45838.0969609341. The cubic root of 2101131133 is about 1280.8090452032.

Adding to 2101131133 its reverse (3311311012), we get a palindrome (5412442145).

The spelling of 2101131133 in words is "two billion, one hundred one million, one hundred thirty-one thousand, one hundred thirty-three".