1052103145521 has 4 divisors (see below), whose sum is σ = 1402804194032. Its totient is φ = 701402097012.

The previous prime is 1052103145517. The next prime is 1052103145531. The reversal of 1052103145521 is 1255413012501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1052103145521 - 2² = 1052103145517 is a prime.

It is a super-2 number, since 2×1052103145521² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1052103145501) 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, 175350524251 + ... + 175350524256.

It is an arithmetic number, because the mean of its divisors is an integer number (350701048508).

Almost surely, 2^{1052103145521} is an apocalyptic number.

It is an amenable number.

1052103145521 is a deficient number, since it is larger than the sum of its proper divisors (350701048511).

1052103145521 is an equidigital number, since it uses as much as digits as its factorization.

1052103145521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350701048510.

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 1052103145521 in words is "one trillion, fifty-two billion, one hundred three million, one hundred forty-five thousand, five hundred twenty-one".