1051431103 has 4 divisors (see below), whose sum is σ = 1053204768. Its totient is φ = 1049657440.

The previous prime is 1051431097. The next prime is 1051431127. The reversal of 1051431103 is 3011341501.

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

It is not a de Polignac number, because 1051431103 - 2⁵ = 1051431071 is a prime.

It is a super-2 number, since 2×1051431103² = 2211014728711593218, 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 (1051431803) 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 3 ways as a sum of consecutive naturals, for example, 885943 + ... + 887128.

It is an arithmetic number, because the mean of its divisors is an integer number (263301192).

Almost surely, 2^1051431103 is an apocalyptic number.

1051431103 is a deficient number, since it is larger than the sum of its proper divisors (1773665).

1051431103 is an equidigital number, since it uses as much as digits as its factorization.

1051431103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773664.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1051431103 is about 32425.7783715364. The cubic root of 1051431103 is about 1016.8579147635.

Adding to 1051431103 its reverse (3011341501), we get a palindrome (4062772604).

The spelling of 1051431103 in words is "one billion, fifty-one million, four hundred thirty-one thousand, one hundred three".