1051313203 has 4 divisors (see below), whose sum is σ = 1058987160. Its totient is φ = 1043639248.

The previous prime is 1051313183. The next prime is 1051313287. The reversal of 1051313203 is 3023131501.

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

It is a cyclic number.

It is not a de Polignac number, because 1051313203 - 2⁵ = 1051313171 is a prime.

It is a super-2 number, since 2×1051313203² = 2210518901604238418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051313503) 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, 3836773 + ... + 3837046.

It is an arithmetic number, because the mean of its divisors is an integer number (264746790).

Almost surely, 2^1051313203 is an apocalyptic number.

1051313203 is a deficient number, since it is larger than the sum of its proper divisors (7673957).

1051313203 is an equidigital number, since it uses as much as digits as its factorization.

1051313203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7673956.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1051313203 is about 32423.9603225763. The cubic root of 1051313203 is about 1016.8199056066.

Adding to 1051313203 its reverse (3023131501), we get a palindrome (4074444704).

It can be divided in two parts, 10513 and 13203, that added together give a square (23716 = 154²).

The spelling of 1051313203 in words is "one billion, fifty-one million, three hundred thirteen thousand, two hundred three".