1020141421 has 8 divisors (see below), whose sum is σ = 1099476504. Its totient is φ = 940929600.

The previous prime is 1020141413. The next prime is 1020141427. The reversal of 1020141421 is 1241410201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 256448196 + 763693225 = 16014^2 + 27635^2 .

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

It is not a de Polignac number, because 1020141421 - 2³ = 1020141413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020141395 and 1020141404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020141427) 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, 13246 + ... + 47071.

It is an arithmetic number, because the mean of its divisors is an integer number (137434563).

Almost surely, 2^1020141421 is an apocalyptic number.

It is an amenable number.

1020141421 is a deficient number, since it is larger than the sum of its proper divisors (79335083).

1020141421 is a wasteful number, since it uses less digits than its factorization.

1020141421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61631.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1020141421 is about 31939.6528002419. The cubic root of 1020141421 is about 1006.6692294985.

Adding to 1020141421 its reverse (1241410201), we get a palindrome (2261551622).

The spelling of 1020141421 in words is "one billion, twenty million, one hundred forty-one thousand, four hundred twenty-one".