20203012102 has 32 divisors (see below), whose sum is σ = 37372188672. Its totient is φ = 7976474784.

The previous prime is 20203012097. The next prime is 20203012127. The reversal of 20203012102 is 20121030202.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18798 + ... + 201889.

It is an arithmetic number, because the mean of its divisors is an integer number (1167880896).

Almost surely, 2^20203012102 is an apocalyptic number.

20203012102 is a deficient number, since it is larger than the sum of its proper divisors (17169176570).

20203012102 is a wasteful number, since it uses less digits than its factorization.

20203012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221212.

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

Adding to 20203012102 its reverse (20121030202), we get a palindrome (40324042304).

The spelling of 20203012102 in words is "twenty billion, two hundred three million, twelve thousand, one hundred two".