11381731 has 2 divisors, whose sum is σ = 11381732. Its totient is φ = 11381730.

The previous prime is 11381719. The next prime is 11381753. The reversal of 11381731 is 13718311.

11381731 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11381731 - 2⁹ = 11381219 is a prime.

It is a super-2 number, since 2×11381731² = 259087601112722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11381696 and 11381705.

It is not a weakly prime, because it can be changed into another prime (11381761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5690865 + 5690866.

It is an arithmetic number, because the mean of its divisors is an integer number (5690866).

Almost surely, 2^11381731 is an apocalyptic number.

11381731 is a deficient number, since it is larger than the sum of its proper divisors (1).

11381731 is an equidigital number, since it uses as much as digits as its factorization.

11381731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 25.

The square root of 11381731 is about 3373.6821130628. The cubic root of 11381731 is about 224.9414234346.

The spelling of 11381731 in words is "eleven million, three hundred eighty-one thousand, seven hundred thirty-one".