2123030221320 has 128 divisors (see below), whose sum is σ = 6532894368000. Its totient is φ = 551751367680.

The previous prime is 2123030221241. The next prime is 2123030221363. The reversal of 2123030221320 is 231220303212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532540 + ... + 2128299.

It is an arithmetic number, because the mean of its divisors is an integer number (51038237250).

Almost surely, 2^{2123030221320} is an apocalyptic number.

2123030221320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123030221320 is an abundant number, since it is smaller than the sum of its proper divisors (4409864146680).

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

2123030221320 is a wasteful number, since it uses less digits than its factorization.

2123030221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661023 (or 2661019 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2123030221320 its reverse (231220303212), we get a palindrome (2354250524532).

The spelling of 2123030221320 in words is "two trillion, one hundred twenty-three billion, thirty million, two hundred twenty-one thousand, three hundred twenty".