32109391129 has 4 divisors (see below), whose sum is σ = 32549245876. Its totient is φ = 31669536384.

The previous prime is 32109391117. The next prime is 32109391177. The reversal of 32109391129 is 92119390123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92119390123 = 295441 ⋅311803.

It can be written as a sum of positive squares in 2 ways, for example, as 23493838729 + 8615552400 = 153277^2 + 92820^2 .

It is a cyclic number.

It is not a de Polignac number, because 32109391129 - 2⁷ = 32109391001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32109391091 and 32109391100.

It is not an unprimeable number, because it can be changed into a prime (32109391429) 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, 219927264 + ... + 219927409.

It is an arithmetic number, because the mean of its divisors is an integer number (8137311469).

Almost surely, 2^32109391129 is an apocalyptic number.

It is an amenable number.

32109391129 is a deficient number, since it is larger than the sum of its proper divisors (439854747).

32109391129 is an equidigital number, since it uses as much as digits as its factorization.

32109391129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439854746.

The product of its (nonzero) digits is 26244, while the sum is 40.

The spelling of 32109391129 in words is "thirty-two billion, one hundred nine million, three hundred ninety-one thousand, one hundred twenty-nine".