21233231312310 has 32 divisors (see below), whose sum is σ = 56621950166880. Its totient is φ = 5662195016544.

The previous prime is 21233231312303. The next prime is 21233231312341. The reversal of 21233231312310 is 1321313233212.

21233231312310 is a `hidden beast` number, since 2 + 1 + 2 + 3 + 3 + 2 + 31 + 312 + 310 = 666.

It is a super-2 number, since 2×21233231312310² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 39320798457 + ... + 39320798996.

It is an arithmetic number, because the mean of its divisors is an integer number (1769435942715).

Almost surely, 2^{21233231312310} is an apocalyptic number.

21233231312310 is an abundant number, since it is smaller than the sum of its proper divisors (35388718854570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21233231312310 is a wasteful number, since it uses less digits than its factorization.

21233231312310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78641597469 (or 78641597463 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 21233231312310 its reverse (1321313233212), we get a palindrome (22554544545522).

The spelling of 21233231312310 in words is "twenty-one trillion, two hundred thirty-three billion, two hundred thirty-one million, three hundred twelve thousand, three hundred ten".