20211110131 has 8 divisors (see below), whose sum is σ = 20691704880. Its totient is φ = 19730995872.

The previous prime is 20211110119. The next prime is 20211110147. The reversal of 20211110131 is 13101111202.

It is a happy number.

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 20211110131 - 2²³ = 20202721523 is a prime.

It is a super-2 number, since 2×20211110131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20211110191) 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 7 ways as a sum of consecutive naturals, for example, 34276 + ... + 203953.

It is an arithmetic number, because the mean of its divisors is an integer number (2586463110).

Almost surely, 2^20211110131 is an apocalyptic number.

20211110131 is a deficient number, since it is larger than the sum of its proper divisors (480594749).

20211110131 is a wasteful number, since it uses less digits than its factorization.

20211110131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240245.

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

Adding to 20211110131 its reverse (13101111202), we get a palindrome (33312221333).

The spelling of 20211110131 in words is "twenty billion, two hundred eleven million, one hundred ten thousand, one hundred thirty-one".