3121001401 has 8 divisors (see below), whose sum is σ = 3567383424. Its totient is φ = 2674750560.

The previous prime is 3121001369. The next prime is 3121001417. The reversal of 3121001401 is 1041001213.

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 3121001401 - 2⁵ = 3121001369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121001701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24981 + ... + 82861.

It is an arithmetic number, because the mean of its divisors is an integer number (445922928).

Almost surely, 2^3121001401 is an apocalyptic number.

It is an amenable number.

3121001401 is a deficient number, since it is larger than the sum of its proper divisors (446382023).

3121001401 is an equidigital number, since it uses as much as digits as its factorization.

3121001401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65591.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 3121001401 is about 55865.9234328047. The cubic root of 3121001401 is about 1461.3850309848.

Adding to 3121001401 its reverse (1041001213), we get a palindrome (4162002614).

The spelling of 3121001401 in words is "three billion, one hundred twenty-one million, one thousand, four hundred one".