20203021102 has 16 divisors (see below), whose sum is σ = 35004165552. Its totient is φ = 8643003520.

The previous prime is 20203021079. The next prime is 20203021109. The reversal of 20203021102 is 20112030202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203021109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27009013 + ... + 27009760.

It is an arithmetic number, because the mean of its divisors is an integer number (2187760347).

Almost surely, 2^20203021102 is an apocalyptic number.

20203021102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20203021102 is a deficient number, since it is larger than the sum of its proper divisors (14801144450).

20203021102 is a wasteful number, since it uses less digits than its factorization.

20203021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54018803.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20203021102 its reverse (20112030202), we get a palindrome (40315051304).

The spelling of 20203021102 in words is "twenty billion, two hundred three million, twenty-one thousand, one hundred two".