31204004113111 has 4 divisors (see below), whose sum is σ = 31792758907752. Its totient is φ = 30615249318472.

The previous prime is 31204004113109. The next prime is 31204004113127. The reversal of 31204004113111 is 11131140040213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31204004113111 - 2¹ = 31204004113109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31204004113181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294377397241 + ... + 294377397346.

It is an arithmetic number, because the mean of its divisors is an integer number (7948189726938).

Almost surely, 2^{31204004113111} is an apocalyptic number.

31204004113111 is a deficient number, since it is larger than the sum of its proper divisors (588754794641).

31204004113111 is an equidigital number, since it uses as much as digits as its factorization.

31204004113111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588754794640.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 31204004113111 its reverse (11131140040213), we get a palindrome (42335144153324).

The spelling of 31204004113111 in words is "thirty-one trillion, two hundred four billion, four million, one hundred thirteen thousand, one hundred eleven".