20203003210 has 16 divisors (see below), whose sum is σ = 39162744936. Its totient is φ = 7459570368.

The previous prime is 20203003141. The next prime is 20203003217. The reversal of 20203003210 is 1230030202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18736955689 + 1466047521 = 136883^2 + 38289^2 .

It is a super-2 number, since 2×20203003210² (a number of 21 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (20203003217) 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, 77703729 + ... + 77703988.

Almost surely, 2^20203003210 is an apocalyptic number.

20203003210 is a deficient number, since it is larger than the sum of its proper divisors (18959741726).

20203003210 is a wasteful number, since it uses less digits than its factorization.

20203003210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155407737.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20203003210 its reverse (1230030202), we get a palindrome (21433033412).

The spelling of 20203003210 in words is "twenty billion, two hundred three million, three thousand, two hundred ten".