1021411141645 has 16 divisors (see below), whose sum is σ = 1245859746480. Its totient is φ = 803686233600.

The previous prime is 1021411141589. The next prime is 1021411141651. The reversal of 1021411141645 is 5461411141201.

It can be written as a sum of positive squares in 8 ways, for example, as 3745807209 + 1017665334436 = 61203^2 + 1008794^2 .

It is not a de Polignac number, because 1021411141645 - 2¹¹ = 1021411139597 is a prime.

It is a super-3 number, since 3×1021411141645³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5666305 + ... + 5843785.

It is an arithmetic number, because the mean of its divisors is an integer number (77866234155).

Almost surely, 2^{1021411141645} is an apocalyptic number.

It is an amenable number.

1021411141645 is a deficient number, since it is larger than the sum of its proper divisors (224448604835).

1021411141645 is a wasteful number, since it uses less digits than its factorization.

1021411141645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196416.

The product of its (nonzero) digits is 3840, while the sum is 31.

Adding to 1021411141645 its reverse (5461411141201), we get a palindrome (6482822282846).

The spelling of 1021411141645 in words is "one trillion, twenty-one billion, four hundred eleven million, one hundred forty-one thousand, six hundred forty-five".