130821902513 has 4 divisors (see below), whose sum is σ = 132291811620. Its totient is φ = 129351993408.

The previous prime is 130821902483. The next prime is 130821902537. The reversal of 130821902513 is 315209128031.

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 13513597504 + 117308305009 = 116248^2 + 342503^2 .

It is a cyclic number.

It is not a de Polignac number, because 130821902513 - 2²⁰ = 130820853937 is a prime.

It is a super-2 number, since 2×130821902513² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130821902543) 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, 734954420 + ... + 734954597.

It is an arithmetic number, because the mean of its divisors is an integer number (33072952905).

Almost surely, 2^130821902513 is an apocalyptic number.

It is an amenable number.

130821902513 is a deficient number, since it is larger than the sum of its proper divisors (1469909107).

130821902513 is an equidigital number, since it uses as much as digits as its factorization.

130821902513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469909106.

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 130821902513 in words is "one hundred thirty billion, eight hundred twenty-one million, nine hundred two thousand, five hundred thirteen".