31422121101 has 20 divisors (see below), whose sum is σ = 53644821472. Its totient is φ = 17955497448.

The previous prime is 31422121091. The next prime is 31422121147. The reversal of 31422121101 is 10112122413.

31422121101 is a `hidden beast` number, since 31 + 422 + 1 + 211 + 0 + 1 = 666.

It is not a de Polignac number, because 31422121101 - 2⁷ = 31422120973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422121001) 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 19 ways as a sum of consecutive naturals, for example, 27708535 + ... + 27709668.

Almost surely, 2^31422121101 is an apocalyptic number.

It is an amenable number.

31422121101 is a deficient number, since it is larger than the sum of its proper divisors (22222700371).

31422121101 is an equidigital number, since it uses as much as digits as its factorization.

31422121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55418222 (or 55418213 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 31422121101 its reverse (10112122413), we get a palindrome (41534243514).

The spelling of 31422121101 in words is "thirty-one billion, four hundred twenty-two million, one hundred twenty-one thousand, one hundred one".