20123121300232 has 8 divisors (see below), whose sum is σ = 37730852437950. Its totient is φ = 10061560650112.

The previous prime is 20123121300199. The next prime is 20123121300253. The reversal of 20123121300232 is 23200312132102.

It can be written as a sum of positive squares in only one way, i.e., 11558871227556 + 8564250072676 = 3399834^2 + 2926474^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257695081257 + ... + 1257695081272.

Almost surely, 2^{20123121300232} is an apocalyptic number.

It is an amenable number.

20123121300232 is a deficient number, since it is larger than the sum of its proper divisors (17607731137718).

20123121300232 is a wasteful number, since it uses less digits than its factorization.

20123121300232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515390162535 (or 2515390162531 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20123121300232 its reverse (23200312132102), we get a palindrome (43323433432334).

The spelling of 20123121300232 in words is "twenty trillion, one hundred twenty-three billion, one hundred twenty-one million, three hundred thousand, two hundred thirty-two".