1431011042 has 4 divisors (see below), whose sum is σ = 2146516566. Its totient is φ = 715505520.

The previous prime is 1431011041. The next prime is 1431011047. The reversal of 1431011042 is 2401101341.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 912583681 + 518427361 = 30209^2 + 22769^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1431011042.

It is not an unprimeable number, because it can be changed into a prime (1431011041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357752759 + ... + 357752762.

Almost surely, 2^1431011042 is an apocalyptic number.

1431011042 is a deficient number, since it is larger than the sum of its proper divisors (715505524).

1431011042 is an equidigital number, since it uses as much as digits as its factorization.

1431011042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715505523.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1431011042 is about 37828.7065864008. The cubic root of 1431011042 is about 1126.8886247150. Note that the first 3 decimals are identical.

Adding to 1431011042 its reverse (2401101341), we get a palindrome (3832112383).

It can be divided in two parts, 14310 and 11042, that added together give a palindrome (25352).

The spelling of 1431011042 in words is "one billion, four hundred thirty-one million, eleven thousand, forty-two".