1053403220451 has 4 divisors (see below), whose sum is σ = 1404537627272. Its totient is φ = 702268813632.

The previous prime is 1053403220447. The next prime is 1053403220473. The reversal of 1053403220451 is 1540223043501.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1053403220451 - 2² = 1053403220447 is a prime.

It is a super-2 number, since 2×1053403220451² (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 (1053403220251) 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, 175567203406 + ... + 175567203411.

It is an arithmetic number, because the mean of its divisors is an integer number (351134406818).

Almost surely, 2^{1053403220451} is an apocalyptic number.

1053403220451 is a deficient number, since it is larger than the sum of its proper divisors (351134406821).

1053403220451 is an equidigital number, since it uses as much as digits as its factorization.

1053403220451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351134406820.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 1053403220451 its reverse (1540223043501), we get a palindrome (2593626263952).

The spelling of 1053403220451 in words is "one trillion, fifty-three billion, four hundred three million, two hundred twenty thousand, four hundred fifty-one".