120021102003 has 32 divisors (see below), whose sum is σ = 176175378432. Its totient is φ = 72076697600.

The previous prime is 120021102001. The next prime is 120021102031. The reversal of 120021102003 is 300201120021.

It is a cyclic number.

It is not a de Polignac number, because 120021102003 - 2¹ = 120021102001 is a prime.

It is a super-2 number, since 2×120021102003² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120021102003.

It is not an unprimeable number, because it can be changed into a prime (120021102001) 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, 1582825 + ... + 1656917.

It is an arithmetic number, because the mean of its divisors is an integer number (5505480576).

Almost surely, 2^120021102003 is an apocalyptic number.

120021102003 is a deficient number, since it is larger than the sum of its proper divisors (56154276429).

120021102003 is a wasteful number, since it uses less digits than its factorization.

120021102003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74555.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 120021102003 its reverse (300201120021), we get a palindrome (420222222024).

The spelling of 120021102003 in words is "one hundred twenty billion, twenty-one million, one hundred two thousand, three".