3111212401 has 4 divisors (see below), whose sum is σ = 3394049904. Its totient is φ = 2828374900.

The previous prime is 3111212387. The next prime is 3111212407. The reversal of 3111212401 is 1042121113.

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 3111212401 - 2¹³ = 3111204209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3111212407) 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 3 ways as a sum of consecutive naturals, for example, 141418735 + ... + 141418756.

It is an arithmetic number, because the mean of its divisors is an integer number (848512476).

Almost surely, 2^3111212401 is an apocalyptic number.

It is an amenable number.

3111212401 is a deficient number, since it is larger than the sum of its proper divisors (282837503).

3111212401 is a wasteful number, since it uses less digits than its factorization.

3111212401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282837502.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 3111212401 is about 55778.2430791792. The cubic root of 3111212401 is about 1459.8555560171.

Adding to 3111212401 its reverse (1042121113), we get a palindrome (4153333514).

It can be divided in two parts, 3111 and 212401, that added together give a palindrome (215512).

The spelling of 3111212401 in words is "three billion, one hundred eleven million, two hundred twelve thousand, four hundred one".