1021535505141 has 8 divisors (see below), whose sum is σ = 1379288446080. Its totient is φ = 672403117152.

The previous prime is 1021535505131. The next prime is 1021535505169. The reversal of 1021535505141 is 1415055351201.

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 1021535505141 - 2¹⁰ = 1021535504117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021535505131) 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, 2155137960 + ... + 2155138433.

It is an arithmetic number, because the mean of its divisors is an integer number (172411055760).

Almost surely, 2^{1021535505141} is an apocalyptic number.

It is an amenable number.

1021535505141 is a deficient number, since it is larger than the sum of its proper divisors (357752940939).

1021535505141 is an equidigital number, since it uses as much as digits as its factorization.

1021535505141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310276475.

The product of its (nonzero) digits is 15000, while the sum is 33.

The spelling of 1021535505141 in words is "one trillion, twenty-one billion, five hundred thirty-five million, five hundred five thousand, one hundred forty-one".