20020111323 has 8 divisors (see below), whose sum is σ = 26780432448. Its totient is φ = 13303265544.

The previous prime is 20020111303. The next prime is 20020111327. The reversal of 20020111323 is 32311102002.

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

It is not a de Polignac number, because 20020111323 - 2¹⁷ = 20019980251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20020111327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10867761 + ... + 10869602.

It is an arithmetic number, because the mean of its divisors is an integer number (3347554056).

Almost surely, 2^20020111323 is an apocalyptic number.

20020111323 is a deficient number, since it is larger than the sum of its proper divisors (6760321125).

20020111323 is a wasteful number, since it uses less digits than its factorization.

20020111323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21737673.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20020111323 its reverse (32311102002), we get a palindrome (52331213325).

The spelling of 20020111323 in words is "twenty billion, twenty million, one hundred eleven thousand, three hundred twenty-three".