20031022 has 32 divisors (see below), whose sum is σ = 35334144. Its totient is φ = 8421600.

The previous prime is 20030987. The next prime is 20031029. The reversal of 20031022 is 22013002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15048 + ... + 16324.

It is an arithmetic number, because the mean of its divisors is an integer number (1104192).

Almost surely, 2^20031022 is an apocalyptic number.

20031022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20031022 is a deficient number, since it is larger than the sum of its proper divisors (15303122).

20031022 is a wasteful number, since it uses less digits than its factorization.

20031022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20031022 is about 4475.6029761363. The cubic root of 20031022 is about 271.5820335980.

Adding to 20031022 its reverse (22013002), we get a palindrome (42044024).

It can be divided in two parts, 2003 and 1022, that added together give a square (3025 = 55²).

The spelling of 20031022 in words is "twenty million, thirty-one thousand, twenty-two".