1053513021311 has 4 divisors (see below), whose sum is σ = 1053515172000. Its totient is φ = 1053510870624.

The previous prime is 1053513021289. The next prime is 1053513021313. The reversal of 1053513021311 is 1131203153501.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1053513021311 is a prime.

It is a super-2 number, since 2×1053513021311² (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 (1053513021313) 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, 56615 + ... + 1452663.

It is an arithmetic number, because the mean of its divisors is an integer number (263378793000).

Almost surely, 2^{1053513021311} is an apocalyptic number.

1053513021311 is a deficient number, since it is larger than the sum of its proper divisors (2150689).

1053513021311 is an equidigital number, since it uses as much as digits as its factorization.

1053513021311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150688.

The product of its (nonzero) digits is 1350, while the sum is 26.

Adding to 1053513021311 its reverse (1131203153501), we get a palindrome (2184716174812).

The spelling of 1053513021311 in words is "one trillion, fifty-three billion, five hundred thirteen million, twenty-one thousand, three hundred eleven".