212020120011123 has 32 divisors (see below), whose sum is σ = 315439741393920. Its totient is φ = 140746549769280.

The previous prime is 212020120011113. The next prime is 212020120011173. The reversal of 212020120011123 is 321110021020212.

It is not a de Polignac number, because 212020120011123 - 2⁴ = 212020120011107 is a prime.

It is a super-2 number, since 2×212020120011123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212020120011096 and 212020120011105.

It is not an unprimeable number, because it can be changed into a prime (212020120011113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4935690 + ... + 21175487.

It is an arithmetic number, because the mean of its divisors is an integer number (9857491918560).

Almost surely, 2^{212020120011123} is an apocalyptic number.

212020120011123 is a deficient number, since it is larger than the sum of its proper divisors (103419621382797).

212020120011123 is a wasteful number, since it uses less digits than its factorization.

212020120011123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26112464 (or 26112458 counting only the distinct ones).

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

Adding to 212020120011123 its reverse (321110021020212), we get a palindrome (533130141031335).

The spelling of 212020120011123 in words is "two hundred twelve trillion, twenty billion, one hundred twenty million, eleven thousand, one hundred twenty-three".