1010120203 has 4 divisors (see below), whose sum is σ = 1012639608. Its totient is φ = 1007600800.

The previous prime is 1010120159. The next prime is 1010120231. The reversal of 1010120203 is 3020210101.

1010120203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010120203 is a prime.

It is a super-2 number, since 2×1010120203² = 2040685649017522418, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1010120203.

It is not an unprimeable number, because it can be changed into a prime (1010120273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1259101 + ... + 1259902.

It is an arithmetic number, because the mean of its divisors is an integer number (253159902).

Almost surely, 2^1010120203 is an apocalyptic number.

1010120203 is a deficient number, since it is larger than the sum of its proper divisors (2519405).

1010120203 is an equidigital number, since it uses as much as digits as its factorization.

1010120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519404.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1010120203 is about 31782.3882519864. The cubic root of 1010120203 is about 1003.3620847184.

Adding to 1010120203 its reverse (3020210101), we get a palindrome (4030330304).

It can be divided in two parts, 10101 and 20203, that multiplied together give a triangular number (204070503 = T₂₀₂₀₂).

The spelling of 1010120203 in words is "one billion, ten million, one hundred twenty thousand, two hundred three".