1421141042 has 4 divisors (see below), whose sum is σ = 2131711566. Its totient is φ = 710570520.

The previous prime is 1421141017. The next prime is 1421141063. The reversal of 1421141042 is 2401411241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2401411241 = 157 ⋅15295613.

It can be written as a sum of positive squares in only one way, i.e., 1179991201 + 241149841 = 34351^2 + 15529^2 .

It is a super-2 number, since 2×1421141042² = 4039283722513691528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355285259 + ... + 355285262.

Almost surely, 2^1421141042 is an apocalyptic number.

1421141042 is a deficient number, since it is larger than the sum of its proper divisors (710570524).

1421141042 is an equidigital number, since it uses as much as digits as its factorization.

1421141042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710570523.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1421141042 is about 37698.0243779432. The cubic root of 1421141042 is about 1124.2918452278.

Adding to 1421141042 its reverse (2401411241), we get a palindrome (3822552283).

The spelling of 1421141042 in words is "one billion, four hundred twenty-one million, one hundred forty-one thousand, forty-two".