20331010 has 16 divisors (see below), whose sum is σ = 41823936. Its totient is φ = 6970608.

The previous prime is 20330993. The next prime is 20331023. The reversal of 20331010 is 1013302.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145152 + ... + 145291.

It is an arithmetic number, because the mean of its divisors is an integer number (2613996).

Almost surely, 2^20331010 is an apocalyptic number.

20331010 is an abundant number, since it is smaller than the sum of its proper divisors (21492926).

20331010 is a wasteful number, since it uses less digits than its factorization.

20331010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290457.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 20331010 is about 4508.9921268505. The cubic root of 20331010 is about 272.9310742998.

Adding to 20331010 its reverse (1013302), we get a palindrome (21344312).

It can be divided in two parts, 203 and 31010, that added together give a palindrome (31213).

The spelling of 20331010 in words is "twenty million, three hundred thirty-one thousand, ten".