3121130401 has 4 divisors (see below), whose sum is σ = 3150299952. Its totient is φ = 3091960852.

The previous prime is 3121130347. The next prime is 3121130459. The reversal of 3121130401 is 1040311213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3121130401 - 2⁷ = 3121130273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121130471) 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, 14584615 + ... + 14584828.

It is an arithmetic number, because the mean of its divisors is an integer number (787574988).

Almost surely, 2^3121130401 is an apocalyptic number.

It is an amenable number.

3121130401 is a deficient number, since it is larger than the sum of its proper divisors (29169551).

3121130401 is a wasteful number, since it uses less digits than its factorization.

3121130401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29169550.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3121130401 is about 55867.0779708408. The cubic root of 3121130401 is about 1461.4051651285.

Adding to 3121130401 its reverse (1040311213), we get a palindrome (4161441614).

The spelling of 3121130401 in words is "three billion, one hundred twenty-one million, one hundred thirty thousand, four hundred one".