1058812128121 has 4 divisors (see below), whose sum is σ = 1155067776144. Its totient is φ = 962556480100.

The previous prime is 1058812128083. The next prime is 1058812128139. The reversal of 1058812128121 is 1218212188501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1058812128121 - 2²⁵ = 1058778573689 is a prime.

It is a super-2 number, since 2×1058812128121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1058812128151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48127823995 + ... + 48127824016.

It is an arithmetic number, because the mean of its divisors is an integer number (288766944036).

Almost surely, 2^{1058812128121} is an apocalyptic number.

1058812128121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1058812128121 is a deficient number, since it is larger than the sum of its proper divisors (96255648023).

1058812128121 is an equidigital number, since it uses as much as digits as its factorization.

1058812128121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96255648022.

The product of its (nonzero) digits is 20480, while the sum is 40.

The spelling of 1058812128121 in words is "one trillion, fifty-eight billion, eight hundred twelve million, one hundred twenty-eight thousand, one hundred twenty-one".