20435100122452 has 24 divisors (see below), whose sum is σ = 36096998452200. Its totient is φ = 10121767735296.

The previous prime is 20435100122431. The next prime is 20435100122453. The reversal of 20435100122452 is 25422100153402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 397623569476 + 20037476552976 = 630574^2 + 4476324^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20435100122453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11112927 + ... + 12820582.

It is an arithmetic number, because the mean of its divisors is an integer number (1504041602175).

Almost surely, 2^{20435100122452} is an apocalyptic number.

It is an amenable number.

20435100122452 is a deficient number, since it is larger than the sum of its proper divisors (15661898329748).

20435100122452 is a wasteful number, since it uses less digits than its factorization.

20435100122452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23935515 (or 23935513 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 20435100122452 its reverse (25422100153402), we get a palindrome (45857200275854).

The spelling of 20435100122452 in words is "twenty trillion, four hundred thirty-five billion, one hundred million, one hundred twenty-two thousand, four hundred fifty-two".