11931413 has 8 divisors (see below), whose sum is σ = 13092408. Its totient is φ = 10805184.

The previous prime is 11931407. The next prime is 11931431. The reversal of 11931413 is 31413911.

11931413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2798929 + 9132484 = 1673^2 + 3022^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11931413 - 2⁴ = 11931397 is a prime.

It is a super-3 number, since 3×11931413³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11931113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7970 + ... + 9347.

It is an arithmetic number, because the mean of its divisors is an integer number (1636551).

Almost surely, 2^11931413 is an apocalyptic number.

11931413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11931413 is a deficient number, since it is larger than the sum of its proper divisors (1160995).

11931413 is a wasteful number, since it uses less digits than its factorization.

11931413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17383.

The product of its digits is 324, while the sum is 23.

The square root of 11931413 is about 3454.1877482268. The cubic root of 11931413 is about 228.5058342098.

The spelling of 11931413 in words is "eleven million, nine hundred thirty-one thousand, four hundred thirteen".