2131201101 has 16 divisors (see below), whose sum is σ = 3020783040. Its totient is φ = 1332691200.

The previous prime is 2131201081. The next prime is 2131201117. The reversal of 2131201101 is 1011021312.

It is not a de Polignac number, because 2131201101 - 2¹⁴ = 2131184717 is a prime.

It is a super-2 number, since 2×2131201101² = 9084036265807224402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131201151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179340 + ... + 190853.

It is an arithmetic number, because the mean of its divisors is an integer number (188798940).

Almost surely, 2^2131201101 is an apocalyptic number.

It is an amenable number.

2131201101 is a deficient number, since it is larger than the sum of its proper divisors (889581939).

2131201101 is a wasteful number, since it uses less digits than its factorization.

2131201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370316.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 2131201101 is about 46164.9336726481. The cubic root of 2131201101 is about 1286.8901515729.

Adding to 2131201101 its reverse (1011021312), we get a palindrome (3142222413).

The spelling of 2131201101 in words is "two billion, one hundred thirty-one million, two hundred one thousand, one hundred one".