1042131421 has 8 divisors (see below), whose sum is σ = 1062595584. Its totient is φ = 1021697040.

The previous prime is 1042131367. The next prime is 1042131427. The reversal of 1042131421 is 1241312401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1042131421 - 2⁹ = 1042130909 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 (1042131427) 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 7 ways as a sum of consecutive naturals, for example, 71280 + ... + 84646.

It is an arithmetic number, because the mean of its divisors is an integer number (132824448).

Almost surely, 2^1042131421 is an apocalyptic number.

It is an amenable number.

1042131421 is a deficient number, since it is larger than the sum of its proper divisors (20464163).

1042131421 is a wasteful number, since it uses less digits than its factorization.

1042131421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14891.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1042131421 is about 32282.0603586574. The cubic root of 1042131421 is about 1013.8510690992.

Adding to 1042131421 its reverse (1241312401), we get a palindrome (2283443822).

The spelling of 1042131421 in words is "one billion, forty-two million, one hundred thirty-one thousand, four hundred twenty-one".