21301020233120 has 48 divisors (see below), whose sum is σ = 50624999647488. Its totient is φ = 8469387674880.

The previous prime is 21301020233093. The next prime is 21301020233147. The reversal of 21301020233120 is 2133202010312.

It is an interprime number because it is at equal distance from previous prime (21301020233093) and next prime (21301020233147).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 21301020233092 and 21301020233101.

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, 398570216 + ... + 398623655.

It is an arithmetic number, because the mean of its divisors is an integer number (1054687492656).

Almost surely, 2^{21301020233120} is an apocalyptic number.

21301020233120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21301020233120 is an abundant number, since it is smaller than the sum of its proper divisors (29323979414368).

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

21301020233120 is a wasteful number, since it uses less digits than its factorization.

21301020233120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797194053 (or 797194045 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21301020233120 its reverse (2133202010312), we get a palindrome (23434222243432).

The spelling of 21301020233120 in words is "twenty-one trillion, three hundred one billion, twenty million, two hundred thirty-three thousand, one hundred twenty".