10989031 has 4 divisors (see below), whose sum is σ = 11033064. Its totient is φ = 10945000.

The previous prime is 10989001. The next prime is 10989047. The reversal of 10989031 is 13098901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13098901 = 73 ⋅179437.

It is a cyclic number.

It is not a de Polignac number, because 10989031 - 2⁷ = 10988903 is a prime.

It is a super-2 number, since 2×10989031² = 241517604637922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10988984 and 10989002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10989001) 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, 21640 + ... + 22141.

It is an arithmetic number, because the mean of its divisors is an integer number (2758266).

Almost surely, 2^10989031 is an apocalyptic number.

10989031 is the 1483-rd centered decagonal number.

10989031 is a deficient number, since it is larger than the sum of its proper divisors (44033).

10989031 is an equidigital number, since it uses as much as digits as its factorization.

10989031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44032.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 10989031 is about 3314.9707389357. The cubic root of 10989031 is about 222.3240607212.

The spelling of 10989031 in words is "ten million, nine hundred eighty-nine thousand, thirty-one".