3111202343431 has 16 divisors (see below), whose sum is σ = 3894073344000. Its totient is φ = 2419888426848.

The previous prime is 3111202343429. The next prime is 3111202343443. The reversal of 3111202343431 is 1343432021113.

It is a cyclic number.

It is not a de Polignac number, because 3111202343431 - 2¹ = 3111202343429 is a prime.

It is a super-2 number, since 2×3111202343431² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3111202343431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111202343471) 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 15 ways as a sum of consecutive naturals, for example, 289732231 + ... + 289742968.

It is an arithmetic number, because the mean of its divisors is an integer number (243379584000).

Almost surely, 2^{3111202343431} is an apocalyptic number.

3111202343431 is a deficient number, since it is larger than the sum of its proper divisors (782871000569).

3111202343431 is a wasteful number, since it uses less digits than its factorization.

3111202343431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579475278.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 3111202343431 its reverse (1343432021113), we get a palindrome (4454634364544).

The spelling of 3111202343431 in words is "three trillion, one hundred eleven billion, two hundred two million, three hundred forty-three thousand, four hundred thirty-one".