2111123333400 has 48 divisors (see below), whose sum is σ = 6544482335400. Its totient is φ = 562966222080.

The previous prime is 2111123333399. The next prime is 2111123333401. The reversal of 2111123333400 is 43333211112.

It is an interprime number because it is at equal distance from previous prime (2111123333399) and next prime (2111123333401).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111123333401) 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 11 ways as a sum of consecutive naturals, for example, 1759268845 + ... + 1759270044.

Almost surely, 2^{2111123333400} is an apocalyptic number.

2111123333400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111123333400 is an abundant number, since it is smaller than the sum of its proper divisors (4433359002000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111123333400 is a wasteful number, since it uses less digits than its factorization.

2111123333400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518538908 (or 3518538899 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 2111123333400 its reverse (43333211112), we get a palindrome (2154456544512).

The spelling of 2111123333400 in words is "two trillion, one hundred eleven billion, one hundred twenty-three million, three hundred thirty-three thousand, four hundred".