1243312004111 has 16 divisors (see below), whose sum is σ = 1321522776000. Its totient is φ = 1167309124608.

The previous prime is 1243312004101. The next prime is 1243312004113. The reversal of 1243312004111 is 1114002133421.

It is a cyclic number.

It is not a de Polignac number, because 1243312004111 - 2⁶ = 1243312004047 is a prime.

It is a super-3 number, since 3×1243312004111³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243312004113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1936286 + ... + 2497163.

It is an arithmetic number, because the mean of its divisors is an integer number (82595173500).

Almost surely, 2^{1243312004111} is an apocalyptic number.

1243312004111 is a deficient number, since it is larger than the sum of its proper divisors (78210771889).

1243312004111 is a wasteful number, since it uses less digits than its factorization.

1243312004111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4433698.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1243312004111 its reverse (1114002133421), we get a palindrome (2357314137532).

The spelling of 1243312004111 in words is "one trillion, two hundred forty-three billion, three hundred twelve million, four thousand, one hundred eleven".