20132511023 has 4 divisors (see below), whose sum is σ = 20138203320. Its totient is φ = 20126818728.

The previous prime is 20132511019. The next prime is 20132511029. The reversal of 20132511023 is 32011523102.

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

It is a cyclic number.

It is not a de Polignac number, because 20132511023 - 2² = 20132511019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20132510986 and 20132511004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132511029) 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, 2840840 + ... + 2847917.

It is an arithmetic number, because the mean of its divisors is an integer number (5034550830).

Almost surely, 2^20132511023 is an apocalyptic number.

20132511023 is a deficient number, since it is larger than the sum of its proper divisors (5692297).

20132511023 is an equidigital number, since it uses as much as digits as its factorization.

20132511023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5692296.

The product of its (nonzero) digits is 360, while the sum is 20.

The spelling of 20132511023 in words is "twenty billion, one hundred thirty-two million, five hundred eleven thousand, twenty-three".