20102030 has 32 divisors (see below), whose sum is σ = 39378528. Its totient is φ = 7344000.

The previous prime is 20102029. The next prime is 20102087. The reversal of 20102030 is 3020102.

It is a super-2 number, since 2×20102030² = 808183220241800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20101999 and 20102017.

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, 12365 + ... + 13895.

It is an arithmetic number, because the mean of its divisors is an integer number (1230579).

Almost surely, 2^20102030 is an apocalyptic number.

20102030 is a deficient number, since it is larger than the sum of its proper divisors (19276498).

20102030 is a wasteful number, since it uses less digits than its factorization.

20102030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 20102030 is about 4483.5287441925. The cubic root of 20102030 is about 271.9025656641.

Adding to 20102030 its reverse (3020102), we get a palindrome (23122132).

The spelling of 20102030 in words is "twenty million, one hundred two thousand, thirty".