31404200411 has 4 divisors (see below), whose sum is σ = 31413261912. Its totient is φ = 31395138912.

The previous prime is 31404200389. The next prime is 31404200441. The reversal of 31404200411 is 11400240413.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31404200411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31404200441) 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, 4525550 + ... + 4532483.

It is an arithmetic number, because the mean of its divisors is an integer number (7853315478).

Almost surely, 2^31404200411 is an apocalyptic number.

31404200411 is a deficient number, since it is larger than the sum of its proper divisors (9061501).

31404200411 is an equidigital number, since it uses as much as digits as its factorization.

31404200411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9061500.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 31404200411 its reverse (11400240413), we get a palindrome (42804440824).

The spelling of 31404200411 in words is "thirty-one billion, four hundred four million, two hundred thousand, four hundred eleven".