11013431 has 8 divisors (see below), whose sum is σ = 12939024. Its totient is φ = 9241920.

The previous prime is 11013427. The next prime is 11013439. The reversal of 11013431 is 13431011.

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

It is a cyclic number.

It is not a de Polignac number, because 11013431 - 2² = 11013427 is a prime.

It is a super-2 number, since 2×11013431² = 242591324783522, which contains 22 as substring.

It is a Duffinian number.

11013431 is a modest number, since divided by 13431 gives 11 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11013439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38366 + ... + 38651.

It is an arithmetic number, because the mean of its divisors is an integer number (1617378).

Almost surely, 2^11013431 is an apocalyptic number.

11013431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11013431 is a deficient number, since it is larger than the sum of its proper divisors (1925593).

11013431 is a wasteful number, since it uses less digits than its factorization.

11013431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77041.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 11013431 is about 3318.6489720969. The cubic root of 11013431 is about 222.4884882316.

Adding to 11013431 its reverse (13431011), we get a palindrome (24444442).

The spelling of 11013431 in words is "eleven million, thirteen thousand, four hundred thirty-one".