101303512309 has 4 divisors (see below), whose sum is σ = 101509833600. Its totient is φ = 101097191020.

The previous prime is 101303512291. The next prime is 101303512357. The reversal of 101303512309 is 903215303101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 903215303101 = 322583 ⋅2799947.

It is a cyclic number.

It is not a de Polignac number, because 101303512309 - 2¹⁷ = 101303381237 is a prime.

It is a super-2 number, since 2×101303512309² (a number of 23 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 (101303519309) 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, 103159909 + ... + 103160890.

It is an arithmetic number, because the mean of its divisors is an integer number (25377458400).

Almost surely, 2^101303512309 is an apocalyptic number.

It is an amenable number.

101303512309 is a deficient number, since it is larger than the sum of its proper divisors (206321291).

101303512309 is an equidigital number, since it uses as much as digits as its factorization.

101303512309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206321290.

The product of its (nonzero) digits is 2430, while the sum is 28.

The spelling of 101303512309 in words is "one hundred one billion, three hundred three million, five hundred twelve thousand, three hundred nine".