2111312031004 has 96 divisors (see below), whose sum is σ = 4082138726400. Its totient is φ = 947531851200.

The previous prime is 2111312030983. The next prime is 2111312031007. The reversal of 2111312031004 is 4001302131112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111312031007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1419845949 + ... + 1419847435.

It is an arithmetic number, because the mean of its divisors is an integer number (42522278400).

Almost surely, 2^{2111312031004} is an apocalyptic number.

It is an amenable number.

2111312031004 is a deficient number, since it is larger than the sum of its proper divisors (1970826695396).

2111312031004 is a wasteful number, since it uses less digits than its factorization.

2111312031004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839 (or 2837 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2111312031004 its reverse (4001302131112), we get a palindrome (6112614162116).

The spelling of 2111312031004 in words is "two trillion, one hundred eleven billion, three hundred twelve million, thirty-one thousand, four".