1021433133505 has 16 divisors (see below), whose sum is σ = 1228010130000. Its totient is φ = 815619981312.

The previous prime is 1021433133493. The next prime is 1021433133527. The reversal of 1021433133505 is 5053313341201.

It is a happy number.

1021433133505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 3547870096 + 1017885263409 = 59564^2 + 1008903^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021433133505 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26340871 + ... + 26379619.

It is an arithmetic number, because the mean of its divisors is an integer number (76750633125).

Almost surely, 2^{1021433133505} is an apocalyptic number.

It is an amenable number.

1021433133505 is a deficient number, since it is larger than the sum of its proper divisors (206576996495).

1021433133505 is an equidigital number, since it uses as much as digits as its factorization.

1021433133505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48468.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 1021433133505 its reverse (5053313341201), we get a palindrome (6074746474706).

The spelling of 1021433133505 in words is "one trillion, twenty-one billion, four hundred thirty-three million, one hundred thirty-three thousand, five hundred five".