1055141133021 has 20 divisors (see below), whose sum is σ = 1576908431164. Its totient is φ = 703110585600.

The previous prime is 1055141133019. The next prime is 1055141133091. The reversal of 1055141133021 is 1203311415501.

1055141133021 is a `hidden beast` number, since 1 + 0 + 5 + 514 + 113 + 30 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 360900562500 + 694240570521 = 600750^2 + 833211^2 .

It is not a de Polignac number, because 1055141133021 - 2¹ = 1055141133019 is a prime.

It is a super-2 number, since 2×1055141133021² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055141133091) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2752660 + ... + 3112461.

Almost surely, 2^{1055141133021} is an apocalyptic number.

It is an amenable number.

1055141133021 is a deficient number, since it is larger than the sum of its proper divisors (521767298143).

1055141133021 is an equidigital number, since it uses as much as digits as its factorization.

1055141133021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5867354 (or 5867345 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 1055141133021 its reverse (1203311415501), we get a palindrome (2258452548522).

The spelling of 1055141133021 in words is "one trillion, fifty-five billion, one hundred forty-one million, one hundred thirty-three thousand, twenty-one".