21312003113230 has 16 divisors (see below), whose sum is σ = 40029501500064. Its totient is φ = 8154157712800.

The previous prime is 21312003113179. The next prime is 21312003113251. The reversal of 21312003113230 is 3231130021312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46330441321 + ... + 46330441780.

It is an arithmetic number, because the mean of its divisors is an integer number (2501843843754).

Almost surely, 2^{21312003113230} is an apocalyptic number.

21312003113230 is a deficient number, since it is larger than the sum of its proper divisors (18717498386834).

21312003113230 is a wasteful number, since it uses less digits than its factorization.

21312003113230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92660883131.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21312003113230 its reverse (3231130021312), we get a palindrome (24543133134542).

The spelling of 21312003113230 in words is "twenty-one trillion, three hundred twelve billion, three million, one hundred thirteen thousand, two hundred thirty".