1052135401213 has 4 divisors (see below), whose sum is σ = 1133068893628. Its totient is φ = 971201908800.

The previous prime is 1052135401211. The next prime is 1052135401237. The reversal of 1052135401213 is 3121045312501.

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 50738914009 + 1001396487204 = 225253^2 + 1000698^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052135401213 - 2¹ = 1052135401211 is a prime.

It is a super-2 number, since 2×1052135401213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052135401211) 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, 40466746188 + ... + 40466746213.

It is an arithmetic number, because the mean of its divisors is an integer number (283267223407).

Almost surely, 2^{1052135401213} is an apocalyptic number.

1052135401213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1052135401213 is a deficient number, since it is larger than the sum of its proper divisors (80933492415).

1052135401213 is an equidigital number, since it uses as much as digits as its factorization.

1052135401213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80933492414.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 1052135401213 in words is "one trillion, fifty-two billion, one hundred thirty-five million, four hundred one thousand, two hundred thirteen".