1021305454354 has 4 divisors (see below), whose sum is σ = 1531958181534. Its totient is φ = 510652727176.

The previous prime is 1021305454339. The next prime is 1021305454439. The reversal of 1021305454354 is 4534545031201.

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

It can be written as a sum of positive squares in only one way, i.e., 655576844329 + 365728610025 = 809677^2 + 604755^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255326363587 + ... + 255326363590.

Almost surely, 2^{1021305454354} is an apocalyptic number.

1021305454354 is a deficient number, since it is larger than the sum of its proper divisors (510652727180).

1021305454354 is an equidigital number, since it uses as much as digits as its factorization.

1021305454354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510652727179.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 1021305454354 in words is "one trillion, twenty-one billion, three hundred five million, four hundred fifty-four thousand, three hundred fifty-four".