1021434211151 has 4 divisors (see below), whose sum is σ = 1021962632232. Its totient is φ = 1020905790072.

The previous prime is 1021434211129. The next prime is 1021434211159. The reversal of 1021434211151 is 1511124341201.

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 1021434211151 - 2³⁴ = 1004254341967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021434211151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021434211159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264207641 + ... + 264211506.

It is an arithmetic number, because the mean of its divisors is an integer number (255490658058).

Almost surely, 2^{1021434211151} is an apocalyptic number.

1021434211151 is a deficient number, since it is larger than the sum of its proper divisors (528421081).

1021434211151 is an equidigital number, since it uses as much as digits as its factorization.

1021434211151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528421080.

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 1021434211151 its reverse (1511124341201), we get a palindrome (2532558552352).

The spelling of 1021434211151 in words is "one trillion, twenty-one billion, four hundred thirty-four million, two hundred eleven thousand, one hundred fifty-one".