1021020141 has 8 divisors (see below), whose sum is σ = 1370031904. Its totient is φ = 676344240.

The previous prime is 1021020109. The next prime is 1021020149. The reversal of 1021020141 is 1410201201.

It is a happy number.

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

It is not a de Polignac number, because 1021020141 - 2⁵ = 1021020109 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 (1021020149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1083415 + ... + 1084356.

It is an arithmetic number, because the mean of its divisors is an integer number (171253988).

Almost surely, 2^1021020141 is an apocalyptic number.

It is an amenable number.

1021020141 is a deficient number, since it is larger than the sum of its proper divisors (349011763).

1021020141 is a wasteful number, since it uses less digits than its factorization.

1021020141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167931.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1021020141 is about 31953.4057809179. The cubic root of 1021020141 is about 1006.9581850311.

Adding to 1021020141 its reverse (1410201201), we get a palindrome (2431221342).

The spelling of 1021020141 in words is "one billion, twenty-one million, twenty thousand, one hundred forty-one".