20132123029 has 8 divisors (see below), whose sum is σ = 20224684760. Its totient is φ = 20039602176.

The previous prime is 20132123023. The next prime is 20132123041. The reversal of 20132123029 is 92032123102.

It can be written as a sum of positive squares in 4 ways, for example, as 5653536100 + 14478586929 = 75190^2 + 120327^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20132123029 - 2¹³ = 20132114837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20132122994 and 20132123012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132123023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1444237 + ... + 1458109.

It is an arithmetic number, because the mean of its divisors is an integer number (2528085595).

Almost surely, 2^20132123029 is an apocalyptic number.

It is an amenable number.

20132123029 is a deficient number, since it is larger than the sum of its proper divisors (92561731).

20132123029 is a wasteful number, since it uses less digits than its factorization.

20132123029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20439.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 20132123029 in words is "twenty billion, one hundred thirty-two million, one hundred twenty-three thousand, twenty-nine".