1042121303 has 4 divisors (see below), whose sum is σ = 1042336080. Its totient is φ = 1041906528.

The previous prime is 1042121287. The next prime is 1042121323. The reversal of 1042121303 is 3031212401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3031212401 = 7 ⋅433030343.

It is a cyclic number.

It is not a de Polignac number, because 1042121303 - 2⁴ = 1042121287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042121323) 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, 99938 + ... + 109871.

It is an arithmetic number, because the mean of its divisors is an integer number (260584020).

Almost surely, 2^1042121303 is an apocalyptic number.

1042121303 is a deficient number, since it is larger than the sum of its proper divisors (214777).

1042121303 is an equidigital number, since it uses as much as digits as its factorization.

1042121303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214776.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1042121303 is about 32281.9036458509. The cubic root of 1042121303 is about 1013.8477879460.

Adding to 1042121303 its reverse (3031212401), we get a palindrome (4073333704).

The spelling of 1042121303 in words is "one billion, forty-two million, one hundred twenty-one thousand, three hundred three".