2111331031442 has 32 divisors (see below), whose sum is σ = 3446557821360. Its totient is φ = 966298798080.

The previous prime is 2111331031399. The next prime is 2111331031477. The reversal of 2111331031442 is 2441301331112.

It can be written as a sum of positive squares in 8 ways, for example, as 1003004253001 + 1108326778441 = 1001501^2 + 1052771^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5534513 + ... + 5903684.

Almost surely, 2^{2111331031442} is an apocalyptic number.

2111331031442 is a deficient number, since it is larger than the sum of its proper divisors (1335226789918).

2111331031442 is a wasteful number, since it uses less digits than its factorization.

2111331031442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11438366.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 2111331031442 its reverse (2441301331112), we get a palindrome (4552632362554).

The spelling of 2111331031442 in words is "two trillion, one hundred eleven billion, three hundred thirty-one million, thirty-one thousand, four hundred forty-two".