1021142341 has 4 divisors (see below), whose sum is σ = 1021545184. Its totient is φ = 1020739500.

The previous prime is 1021142329. The next prime is 1021142347. The reversal of 1021142341 is 1432411201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1021142341 - 2¹¹ = 1021140293 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 (1021142347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197595 + ... + 202696.

It is an arithmetic number, because the mean of its divisors is an integer number (255386296).

Almost surely, 2^1021142341 is an apocalyptic number.

It is an amenable number.

1021142341 is a deficient number, since it is larger than the sum of its proper divisors (402843).

1021142341 is an equidigital number, since it uses as much as digits as its factorization.

1021142341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402842.

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

The square root of 1021142341 is about 31955.3178829440. The cubic root of 1021142341 is about 1006.9983557638.

Adding to 1021142341 its reverse (1432411201), we get a palindrome (2453553542).

The spelling of 1021142341 in words is "one billion, twenty-one million, one hundred forty-two thousand, three hundred forty-one".