20102102030 has 32 divisors (see below), whose sum is σ = 40328681760. Its totient is φ = 7169541120.

The previous prime is 20102101951. The next prime is 20102102039. The reversal of 20102102030 is 3020120102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102102039) 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, 3108551 + ... + 3115010.

It is an arithmetic number, because the mean of its divisors is an integer number (1260271305).

Almost surely, 2^20102102030 is an apocalyptic number.

20102102030 is an abundant number, since it is smaller than the sum of its proper divisors (20226579730).

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

20102102030 is a wasteful number, since it uses less digits than its factorization.

20102102030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6223604.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20102102030 its reverse (3020120102), we get a palindrome (23122222132).

The spelling of 20102102030 in words is "twenty billion, one hundred two million, one hundred two thousand, thirty".