20121100411 has 2 divisors, whose sum is σ = 20121100412. Its totient is φ = 20121100410.

The previous prime is 20121100403. The next prime is 20121100429. The reversal of 20121100411 is 11400112102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20121100411 - 2³ = 20121100403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20121100391 and 20121100400.

It is not a weakly prime, because it can be changed into another prime (20121100211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060550205 + 10060550206.

It is an arithmetic number, because the mean of its divisors is an integer number (10060550206).

Almost surely, 2^20121100411 is an apocalyptic number.

20121100411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121100411 is an equidigital number, since it uses as much as digits as its factorization.

20121100411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20121100411 its reverse (11400112102), we get a palindrome (31521212513).

The spelling of 20121100411 in words is "twenty billion, one hundred twenty-one million, one hundred thousand, four hundred eleven".