1142031403 has 4 divisors (see below), whose sum is σ = 1142692128. Its totient is φ = 1141370680.

The previous prime is 1142031383. The next prime is 1142031409. The reversal of 1142031403 is 3041302411.

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 1142031403 - 2²¹ = 1139934251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142031409) 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, 327763 + ... + 331228.

It is an arithmetic number, because the mean of its divisors is an integer number (285673032).

Almost surely, 2^1142031403 is an apocalyptic number.

1142031403 is a deficient number, since it is larger than the sum of its proper divisors (660725).

1142031403 is an equidigital number, since it uses as much as digits as its factorization.

1142031403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660724.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1142031403 is about 33793.9551251404. The cubic root of 1142031403 is about 1045.2640535995.

Adding to 1142031403 its reverse (3041302411), we get a palindrome (4183333814).

The spelling of 1142031403 in words is "one billion, one hundred forty-two million, thirty-one thousand, four hundred three".