123020212021 has 8 divisors (see below), whose sum is σ = 141052493120. Its totient is φ = 105102422208.

The previous prime is 123020212013. The next prime is 123020212027. The reversal of 123020212021 is 120212020321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123020212021 - 2³ = 123020212013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123020211986 and 123020212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123020212027) 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, 28620516 + ... + 28624813.

It is an arithmetic number, because the mean of its divisors is an integer number (17631561640).

Almost surely, 2^123020212021 is an apocalyptic number.

It is an amenable number.

123020212021 is a deficient number, since it is larger than the sum of its proper divisors (18032281099).

123020212021 is an equidigital number, since it uses as much as digits as its factorization.

123020212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57245643.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 123020212021 its reverse (120212020321), we get a palindrome (243232232342).

The spelling of 123020212021 in words is "one hundred twenty-three billion, twenty million, two hundred twelve thousand, twenty-one".