11631031 has 8 divisors (see below), whose sum is σ = 12217824. Its totient is φ = 11051040.

The previous prime is 11631029. The next prime is 11631071. The reversal of 11631031 is 13013611.

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

It is not a de Polignac number, because 11631031 - 2¹ = 11631029 is a prime.

It is a super-2 number, since 2×11631031² = 270561764245922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11630996 and 11631014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11631071) 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, 2001 + ... + 5221.

It is an arithmetic number, because the mean of its divisors is an integer number (1527228).

Almost surely, 2^11631031 is an apocalyptic number.

11631031 is a deficient number, since it is larger than the sum of its proper divisors (586793).

11631031 is a wasteful number, since it uses less digits than its factorization.

11631031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 11631031 is about 3410.4297383174. The cubic root of 11631031 is about 226.5719127695.

Adding to 11631031 its reverse (13013611), we get a palindrome (24644642).

The spelling of 11631031 in words is "eleven million, six hundred thirty-one thousand, thirty-one".