23031030 has 64 divisors (see below), whose sum is σ = 60984576. Its totient is φ = 5520000.

The previous prime is 23030999. The next prime is 23031061. The reversal of 23031030 is 3013032.

23031030 = T₁₂ + T₁₃ + ... + T₅₁₆.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23030999) and next prime (23031061).

It is a junction number, because it is equal to n+sod(n) for n = 23030997 and 23031015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32985 + ... + 33675.

It is an arithmetic number, because the mean of its divisors is an integer number (952884).

Almost surely, 2^23031030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23031030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30492288).

23031030 is an abundant number, since it is smaller than the sum of its proper divisors (37953546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23031030 is a wasteful number, since it uses less digits than its factorization.

23031030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 23031030 is about 4799.0655340389. The cubic root of 23031030 is about 284.5145320972.

Adding to 23031030 its reverse (3013032), we get a palindrome (26044062).

It can be divided in two parts, 2303 and 1030, that added together give a palindrome (3333).

The spelling of 23031030 in words is "twenty-three million, thirty-one thousand, thirty".