20523148233 has 16 divisors (see below), whose sum is σ = 31786048896. Its totient is φ = 11535258240.

The previous prime is 20523148211. The next prime is 20523148297. The reversal of 20523148233 is 33284132502.

It is not a de Polignac number, because 20523148233 - 2¹⁰ = 20523147209 is a prime.

It is a super-2 number, since 2×20523148233² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20523148194 and 20523148203.

It is not an unprimeable number, because it can be changed into a prime (20523143233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8009316 + ... + 8011877.

It is an arithmetic number, because the mean of its divisors is an integer number (1986628056).

Almost surely, 2^20523148233 is an apocalyptic number.

It is an amenable number.

20523148233 is a deficient number, since it is larger than the sum of its proper divisors (11262900663).

20523148233 is a wasteful number, since it uses less digits than its factorization.

20523148233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16021264.

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 20523148233 in words is "twenty billion, five hundred twenty-three million, one hundred forty-eight thousand, two hundred thirty-three".