20231312322555 has 48 divisors (see below), whose sum is σ = 35521575223680. Its totient is φ = 10650428515584.

The previous prime is 20231312322527. The next prime is 20231312322563. The reversal of 20231312322555 is 55522321313202.

20231312322555 is a `hidden beast` number, since 2 + 0 + 2 + 31 + 31 + 23 + 22 + 555 = 666.

It is not a de Polignac number, because 20231312322555 - 2⁶ = 20231312322491 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11754417 + ... + 13365213.

It is an arithmetic number, because the mean of its divisors is an integer number (740032817160).

Almost surely, 2^{20231312322555} is an apocalyptic number.

20231312322555 is a deficient number, since it is larger than the sum of its proper divisors (15290262901125).

20231312322555 is a wasteful number, since it uses less digits than its factorization.

20231312322555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614420 (or 1614417 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 20231312322555 its reverse (55522321313202), we get a palindrome (75753633635757).

The spelling of 20231312322555 in words is "twenty trillion, two hundred thirty-one billion, three hundred twelve million, three hundred twenty-two thousand, five hundred fifty-five".