20121073411 has 2 divisors, whose sum is σ = 20121073412. Its totient is φ = 20121073410.

The previous prime is 20121073409. The next prime is 20121073421. The reversal of 20121073411 is 11437012102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20121073411 - 2¹ = 20121073409 is a prime.

Together with 20121073409, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20121073421) 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 as a sum of consecutive naturals, namely, 10060536705 + 10060536706.

It is an arithmetic number, because the mean of its divisors is an integer number (10060536706).

Almost surely, 2^20121073411 is an apocalyptic number.

20121073411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121073411 is an equidigital number, since it uses as much as digits as its factorization.

20121073411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 20121073411 its reverse (11437012102), we get a palindrome (31558085513).

The spelling of 20121073411 in words is "twenty billion, one hundred twenty-one million, seventy-three thousand, four hundred eleven".