31340411 has 4 divisors (see below), whose sum is σ = 32351424. Its totient is φ = 30329400.

The previous prime is 31340381. The next prime is 31340417. The reversal of 31340411 is 11404313.

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 31340411 - 2²² = 27146107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31340411.

It is not an unprimeable number, because it can be changed into a prime (31340417) 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, 505460 + ... + 505521.

It is an arithmetic number, because the mean of its divisors is an integer number (8087856).

Almost surely, 2^31340411 is an apocalyptic number.

31340411 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

31340411 is a deficient number, since it is larger than the sum of its proper divisors (1011013).

31340411 is a wasteful number, since it uses less digits than its factorization.

31340411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011012.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 31340411 is about 5598.2507089269. The cubic root of 31340411 is about 315.2837319260.

Adding to 31340411 its reverse (11404313), we get a palindrome (42744724).

The spelling of 31340411 in words is "thirty-one million, three hundred forty thousand, four hundred eleven".