1034135021321 has 4 divisors (see below), whose sum is σ = 1037979389700. Its totient is φ = 1030290652944.

The previous prime is 1034135021299. The next prime is 1034135021329. The reversal of 1034135021321 is 1231205314301.

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

It can be written as a sum of positive squares in 2 ways, for example, as 122262814921 + 911872206400 = 349661^2 + 954920^2 .

It is a cyclic number.

It is not a de Polignac number, because 1034135021321 - 2²⁶ = 1034067912457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1034135021329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1922183786 + ... + 1922184323.

It is an arithmetic number, because the mean of its divisors is an integer number (259494847425).

Almost surely, 2^{1034135021321} is an apocalyptic number.

It is an amenable number.

1034135021321 is a deficient number, since it is larger than the sum of its proper divisors (3844368379).

1034135021321 is an equidigital number, since it uses as much as digits as its factorization.

1034135021321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844368378.

The product of its (nonzero) digits is 2160, while the sum is 26.

The spelling of 1034135021321 in words is "one trillion, thirty-four billion, one hundred thirty-five million, twenty-one thousand, three hundred twenty-one".