20231313154646 has 16 divisors (see below), whose sum is σ = 33110502010560. Its totient is φ = 9194741198280.

The previous prime is 20231313154609. The next prime is 20231313154649. The reversal of 20231313154646 is 64645131313202.

It is a happy number.

It is a super-2 number, since 2×20231313154646² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231313154649) 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, 65353856 + ... + 65662691.

It is an arithmetic number, because the mean of its divisors is an integer number (2069406375660).

Almost surely, 2^{20231313154646} is an apocalyptic number.

20231313154646 is a deficient number, since it is larger than the sum of its proper divisors (12879188855914).

20231313154646 is a wasteful number, since it uses less digits than its factorization.

20231313154646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131023579.

The product of its (nonzero) digits is 311040, while the sum is 41.

Adding to 20231313154646 its reverse (64645131313202), we get a palindrome (84876444467848).

The spelling of 20231313154646 in words is "twenty trillion, two hundred thirty-one billion, three hundred thirteen million, one hundred fifty-four thousand, six hundred forty-six".