1210120203 has 8 divisors (see below), whose sum is σ = 1698414400. Its totient is φ = 764286408.

The previous prime is 1210120193. The next prime is 1210120283. The reversal of 1210120203 is 3020210121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1210120203 - 2⁸ = 1210119947 is a prime.

It is a super-2 number, since 2×1210120203² = 2928781811417522418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210120283) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10615033 + ... + 10615146.

It is an arithmetic number, because the mean of its divisors is an integer number (212301800).

Almost surely, 2^1210120203 is an apocalyptic number.

1210120203 is a deficient number, since it is larger than the sum of its proper divisors (488294197).

1210120203 is a wasteful number, since it uses less digits than its factorization.

1210120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21230201.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1210120203 is about 34786.7820155875. The cubic root of 1210120203 is about 1065.6375217100.

Adding to 1210120203 its reverse (3020210121), we get a palindrome (4230330324).

The spelling of 1210120203 in words is "one billion, two hundred ten million, one hundred twenty thousand, two hundred three".