20031230 has 32 divisors (see below), whose sum is σ = 37091520. Its totient is φ = 7786240.

The previous prime is 20031223. The next prime is 20031281. The reversal of 20031230 is 3213002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63032 + ... + 63348.

It is an arithmetic number, because the mean of its divisors is an integer number (1159110).

Almost surely, 2^20031230 is an apocalyptic number.

20031230 is a deficient number, since it is larger than the sum of its proper divisors (17060290).

20031230 is a wasteful number, since it uses less digits than its factorization.

20031230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 20031230 is about 4475.6262131684. The cubic root of 20031230 is about 271.5829736211.

Adding to 20031230 its reverse (3213002), we get a palindrome (23244232).

It can be divided in two parts, 20031 and 230, that multiplied together give a triangular number (4607130 = T₃₀₃₅).

The spelling of 20031230 in words is "twenty million, thirty-one thousand, two hundred thirty".