20133420121023 has 32 divisors (see below), whose sum is σ = 29619420698880. Its totient is φ = 12062770325760.

The previous prime is 20133420121019. The next prime is 20133420121051. The reversal of 20133420121023 is 32012102433102.

It is not a de Polignac number, because 20133420121023 - 2² = 20133420121019 is a prime.

It is a super-2 number, since 2×20133420121023² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20133420120984 and 20133420121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133420121013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15551661 + ... + 16796457.

It is an arithmetic number, because the mean of its divisors is an integer number (925606896840).

Almost surely, 2^{20133420121023} is an apocalyptic number.

20133420121023 is a deficient number, since it is larger than the sum of its proper divisors (9486000577857).

20133420121023 is a wasteful number, since it uses less digits than its factorization.

20133420121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250407.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20133420121023 its reverse (32012102433102), we get a palindrome (52145522554125).

The spelling of 20133420121023 in words is "twenty trillion, one hundred thirty-three billion, four hundred twenty million, one hundred twenty-one thousand, twenty-three".