2111231343403 has 64 divisors (see below), whose sum is σ = 2744632800000. Its totient is φ = 1611803999232.

The previous prime is 2111231343383. The next prime is 2111231343433. The reversal of 2111231343403 is 3043431321112.

It is a de Polignac number, because none of the positive numbers 2^k-2111231343403 is a prime.

It is a super-2 number, since 2×2111231343403² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2111231343433) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 252022951 + ... + 252031327.

It is an arithmetic number, because the mean of its divisors is an integer number (42884887500).

Almost surely, 2^{2111231343403} is an apocalyptic number.

2111231343403 is a deficient number, since it is larger than the sum of its proper divisors (633401456597).

2111231343403 is a wasteful number, since it uses less digits than its factorization.

2111231343403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10389 (or 10375 counting only the distinct ones).

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

Adding to 2111231343403 its reverse (3043431321112), we get a palindrome (5154662664515).

The spelling of 2111231343403 in words is "two trillion, one hundred eleven billion, two hundred thirty-one million, three hundred forty-three thousand, four hundred three".