120003311211021 has 48 divisors (see below), whose sum is σ = 203621139281664. Its totient is φ = 66665431752192.

The previous prime is 120003311210977. The next prime is 120003311211079. The reversal of 120003311211021 is 120112113300021.

120003311211021 is a `hidden beast` number, since 1 + 200 + 0 + 331 + 1 + 2 + 110 + 21 = 666.

It is not a de Polignac number, because 120003311211021 - 2²¹ = 120003309113869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120003311210985 and 120003311211003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120003311011021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18196396 + ... + 23898021.

It is an arithmetic number, because the mean of its divisors is an integer number (4242107068368).

Almost surely, 2^{120003311211021} is an apocalyptic number.

It is an amenable number.

120003311211021 is a deficient number, since it is larger than the sum of its proper divisors (83617828070643).

120003311211021 is a wasteful number, since it uses less digits than its factorization.

120003311211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42095690 (or 42095687 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 120003311211021 its reverse (120112113300021), we get a palindrome (240115424511042).

The spelling of 120003311211021 in words is "one hundred twenty trillion, three billion, three hundred eleven million, two hundred eleven thousand, twenty-one".