3121230401 has 8 divisors (see below), whose sum is σ = 3155959464. Its totient is φ = 3086553600.

The previous prime is 3121230397. The next prime is 3121230407. The reversal of 3121230401 is 1040321213.

It can be written as a sum of positive squares in 4 ways, for example, as 248377600 + 2872852801 = 15760^2 + 53599^2 .

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 3121230401 - 2² = 3121230397 is a prime.

It is a super-2 number, since 2×3121230401² = 19484158432253241602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3121230401.

It is not an unprimeable number, because it can be changed into a prime (3121230407) 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, 113831 + ... + 138563.

It is an arithmetic number, because the mean of its divisors is an integer number (394494933).

Almost surely, 2^3121230401 is an apocalyptic number.

It is an amenable number.

3121230401 is a deficient number, since it is larger than the sum of its proper divisors (34729063).

3121230401 is a wasteful number, since it uses less digits than its factorization.

3121230401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26131.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3121230401 is about 55867.9729451499. The cubic root of 3121230401 is about 1461.4207726101.

Adding to 3121230401 its reverse (1040321213), we get a palindrome (4161551614).

The spelling of 3121230401 in words is "three billion, one hundred twenty-one million, two hundred thirty thousand, four hundred one".