1203210101 has 6 divisors (see below), whose sum is σ = 1213965090. Its totient is φ = 1192549568.

The previous prime is 1203210097. The next prime is 1203210119. The reversal of 1203210101 is 1010123021.

It can be written as a sum of positive squares in 3 ways, for example, as 2656900 + 1200553201 = 1630^2 + 34649^2 .

It is not a de Polignac number, because 1203210101 - 2² = 1203210097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203210121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34346 + ... + 59883.

It is an arithmetic number, because the mean of its divisors is an integer number (202327515).

Almost surely, 2^1203210101 is an apocalyptic number.

It is an amenable number.

1203210101 is a deficient number, since it is larger than the sum of its proper divisors (10754989).

1203210101 is an frugal number, since it uses more digits than its factorization.

1203210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94455 (or 94342 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1203210101 is about 34687.3190229513. The cubic root of 1203210101 is about 1063.6052925332.

Adding to 1203210101 its reverse (1010123021), we get a palindrome (2213333122).

The spelling of 1203210101 in words is "one billion, two hundred three million, two hundred ten thousand, one hundred one".