1021434044525 has 12 divisors (see below), whose sum is σ = 1266604598784. Its totient is φ = 817130214000.

The previous prime is 1021434044489. The next prime is 1021434044569. The reversal of 1021434044525 is 5254404341201.

It is a happy number.

It is not a de Polignac number, because 1021434044525 - 2¹⁴ = 1021434028141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 876770 + ... + 1676780.

It is an arithmetic number, because the mean of its divisors is an integer number (105550383232).

Almost surely, 2^{1021434044525} is an apocalyptic number.

It is an amenable number.

1021434044525 is a deficient number, since it is larger than the sum of its proper divisors (245170554259).

1021434044525 is an equidigital number, since it uses as much as digits as its factorization.

1021434044525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851092 (or 851087 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 1021434044525 its reverse (5254404341201), we get a palindrome (6275838385726).

The spelling of 1021434044525 in words is "one trillion, twenty-one billion, four hundred thirty-four million, forty-four thousand, five hundred twenty-five".