120023210121 has 16 divisors (see below), whose sum is σ = 168561254400. Its totient is φ = 75755701008.

The previous prime is 120023210063. The next prime is 120023210173. The reversal of 120023210121 is 121012320021.

It is not a de Polignac number, because 120023210121 - 2²³ = 120014821513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120023210121.

It is not an unprimeable number, because it can be changed into a prime (120023210191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 582561 + ... + 761198.

It is an arithmetic number, because the mean of its divisors is an integer number (10535078400).

Almost surely, 2^120023210121 is an apocalyptic number.

It is an amenable number.

120023210121 is a deficient number, since it is larger than the sum of its proper divisors (48538044279).

120023210121 is a wasteful number, since it uses less digits than its factorization.

120023210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345348.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 120023210121 its reverse (121012320021), we get a palindrome (241035530142).

The spelling of 120023210121 in words is "one hundred twenty billion, twenty-three million, two hundred ten thousand, one hundred twenty-one".