1040121526355 has 4 divisors (see below), whose sum is σ = 1248145831632. Its totient is φ = 832097221080.

The previous prime is 1040121526337. The next prime is 1040121526361. The reversal of 1040121526355 is 5536251210401.

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

It is not a de Polignac number, because 1040121526355 - 2¹⁸ = 1040121264211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 104012152631 + ... + 104012152640.

It is an arithmetic number, because the mean of its divisors is an integer number (312036457908).

Almost surely, 2^{1040121526355} is an apocalyptic number.

1040121526355 is a deficient number, since it is larger than the sum of its proper divisors (208024305277).

1040121526355 is an equidigital number, since it uses as much as digits as its factorization.

1040121526355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208024305276.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 1040121526355 its reverse (5536251210401), we get a palindrome (6576372736756).

The spelling of 1040121526355 in words is "one trillion, forty billion, one hundred twenty-one million, five hundred twenty-six thousand, three hundred fifty-five".