120421100003 has 8 divisors (see below), whose sum is σ = 124325986176. Its totient is φ = 116517484800.

The previous prime is 120421099999. The next prime is 120421100053. The reversal of 120421100003 is 300001124021.

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

It is a cyclic number.

It is not a de Polignac number, because 120421100003 - 2² = 120421099999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120421100053) 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, 123278 + ... + 506003.

It is an arithmetic number, because the mean of its divisors is an integer number (15540748272).

Almost surely, 2^120421100003 is an apocalyptic number.

120421100003 is a deficient number, since it is larger than the sum of its proper divisors (3904886173).

120421100003 is an equidigital number, since it uses as much as digits as its factorization.

120421100003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635485.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 120421100003 its reverse (300001124021), we get a palindrome (420422224024).

The spelling of 120421100003 in words is "one hundred twenty billion, four hundred twenty-one million, one hundred thousand, three".