1054221353243 has 4 divisors (see below), whose sum is σ = 1116234374040. Its totient is φ = 992208332448.

The previous prime is 1054221353231. The next prime is 1054221353257. The reversal of 1054221353243 is 3423531224501.

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

It is a cyclic number.

It is not a de Polignac number, because 1054221353243 - 2¹⁴ = 1054221336859 is a prime.

It is a super-2 number, since 2×1054221353243² (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 (1054221352243) 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, 31006510373 + ... + 31006510406.

It is an arithmetic number, because the mean of its divisors is an integer number (279058593510).

Almost surely, 2^{1054221353243} is an apocalyptic number.

1054221353243 is a deficient number, since it is larger than the sum of its proper divisors (62013020797).

1054221353243 is an equidigital number, since it uses as much as digits as its factorization.

1054221353243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62013020796.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 1054221353243 its reverse (3423531224501), we get a palindrome (4477752577744).

The spelling of 1054221353243 in words is "one trillion, fifty-four billion, two hundred twenty-one million, three hundred fifty-three thousand, two hundred forty-three".