11400331 has 4 divisors (see below), whose sum is σ = 11464200. Its totient is φ = 11336464.

The previous prime is 11400293. The next prime is 11400377. The reversal of 11400331 is 13300411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13300411 = 1381 ⋅9631.

It is a cyclic number.

It is not a de Polignac number, because 11400331 - 2¹⁵ = 11367563 is a prime.

It is a super-2 number, since 2×11400331² = 259935093819122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11400131) 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, 31666 + ... + 32023.

It is an arithmetic number, because the mean of its divisors is an integer number (2866050).

Almost surely, 2^11400331 is an apocalyptic number.

11400331 is a deficient number, since it is larger than the sum of its proper divisors (63869).

11400331 is an equidigital number, since it uses as much as digits as its factorization.

11400331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63868.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 11400331 is about 3376.4376197407. The cubic root of 11400331 is about 225.0638896755.

Adding to 11400331 its reverse (13300411), we get a palindrome (24700742).

The spelling of 11400331 in words is "eleven million, four hundred thousand, three hundred thirty-one".