1053442121251 has 16 divisors (see below), whose sum is σ = 1202662720224. Its totient is φ = 914100816384.

The previous prime is 1053442121209. The next prime is 1053442121297. The reversal of 1053442121251 is 1521212443501.

It is a cyclic number.

It is not a de Polignac number, because 1053442121251 - 2⁹ = 1053442120739 is a prime.

It is a super-2 number, since 2×1053442121251² (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 (1053442125251) by changing a digit.

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, 2699160 + ... + 3064693.

It is an arithmetic number, because the mean of its divisors is an integer number (75166420014).

Almost surely, 2^{1053442121251} is an apocalyptic number.

1053442121251 is a deficient number, since it is larger than the sum of its proper divisors (149220598973).

1053442121251 is a wasteful number, since it uses less digits than its factorization.

1053442121251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5764710.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 1053442121251 its reverse (1521212443501), we get a palindrome (2574654564752).

The spelling of 1053442121251 in words is "one trillion, fifty-three billion, four hundred forty-two million, one hundred twenty-one thousand, two hundred fifty-one".