20123212011211 has 8 divisors (see below), whose sum is σ = 21001951553184. Its totient is φ = 19244790576000.

The previous prime is 20123212011169. The next prime is 20123212011241. The reversal of 20123212011211 is 11211021232102.

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 20123212011211 - 2²⁵ = 20123178456779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123212011241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79397406 + ... + 79650451.

It is an arithmetic number, because the mean of its divisors is an integer number (2625243944148).

Almost surely, 2^{20123212011211} is an apocalyptic number.

20123212011211 is a deficient number, since it is larger than the sum of its proper divisors (878739541973).

20123212011211 is a wasteful number, since it uses less digits than its factorization.

20123212011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159053381.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 20123212011211 its reverse (11211021232102), we get a palindrome (31334233243313).

The spelling of 20123212011211 in words is "twenty trillion, one hundred twenty-three billion, two hundred twelve million, eleven thousand, two hundred eleven".