3120401003 has 4 divisors (see below), whose sum is σ = 3136240800. Its totient is φ = 3104561208.

The previous prime is 3120400999. The next prime is 3120401041. The reversal of 3120401003 is 3001040213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3120401003 - 2² = 3120400999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120401093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7919603 + ... + 7919996.

It is an arithmetic number, because the mean of its divisors is an integer number (784060200).

Almost surely, 2^3120401003 is an apocalyptic number.

3120401003 is a deficient number, since it is larger than the sum of its proper divisors (15839797).

3120401003 is a wasteful number, since it uses less digits than its factorization.

3120401003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15839796.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3120401003 is about 55860.5496124054. The cubic root of 3120401003 is about 1461.2913143848.

Adding to 3120401003 its reverse (3001040213), we get a palindrome (6121441216).

The spelling of 3120401003 in words is "three billion, one hundred twenty million, four hundred one thousand, three".