1051123103 has 4 divisors (see below), whose sum is σ = 1051252920. Its totient is φ = 1050993288.

The previous prime is 1051123097. The next prime is 1051123127. The reversal of 1051123103 is 3013211501.

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 1051123103 - 2⁸ = 1051122847 is a prime.

It is a super-2 number, since 2×1051123103² = 2209719555320697218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051123153) 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, 51893 + ... + 69246.

It is an arithmetic number, because the mean of its divisors is an integer number (262813230).

Almost surely, 2^1051123103 is an apocalyptic number.

1051123103 is a deficient number, since it is larger than the sum of its proper divisors (129817).

1051123103 is an equidigital number, since it uses as much as digits as its factorization.

1051123103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129816.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1051123103 is about 32421.0287159430. The cubic root of 1051123103 is about 1016.7586142884.

Adding to 1051123103 its reverse (3013211501), we get a palindrome (4064334604).

The spelling of 1051123103 in words is "one billion, fifty-one million, one hundred twenty-three thousand, one hundred three".