201121100131 has 8 divisors (see below), whose sum is σ = 229898595584. Its totient is φ = 172355082120.

The previous prime is 201121100087. The next prime is 201121100153. The reversal of 201121100131 is 131001121102.

It is a happy number.

201121100131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 201121100131 - 2³³ = 192531165539 is a prime.

It is a super-2 number, since 2×201121100131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201121100231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2831775 + ... + 2901928.

It is an arithmetic number, because the mean of its divisors is an integer number (28737324448).

Almost surely, 2^201121100131 is an apocalyptic number.

201121100131 is a deficient number, since it is larger than the sum of its proper divisors (28777495453).

201121100131 is an equidigital number, since it uses as much as digits as its factorization.

201121100131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5738721.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 201121100131 its reverse (131001121102), we get a palindrome (332122221233).

The spelling of 201121100131 in words is "two hundred one billion, one hundred twenty-one million, one hundred thousand, one hundred thirty-one".