3120400401 has 4 divisors (see below), whose sum is σ = 4160533872. Its totient is φ = 2080266932.

The previous prime is 3120400399. The next prime is 3120400411. The reversal of 3120400401 is 1040040213.

3120400401 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 3120400401 - 2¹ = 3120400399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3120400411) 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, 520066731 + ... + 520066736.

It is an arithmetic number, because the mean of its divisors is an integer number (1040133468).

Almost surely, 2^3120400401 is an apocalyptic number.

It is an amenable number.

3120400401 is a deficient number, since it is larger than the sum of its proper divisors (1040133471).

3120400401 is a wasteful number, since it uses less digits than its factorization.

3120400401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040133470.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 3120400401 is about 55860.5442239869. The cubic root of 3120400401 is about 1461.2912204121.

Adding to 3120400401 its reverse (1040040213), we get a palindrome (4160440614).

The spelling of 3120400401 in words is "three billion, one hundred twenty million, four hundred thousand, four hundred one".