2123536020 has 48 divisors (see below), whose sum is σ = 6150936960. Its totient is φ = 546749056.

The previous prime is 2123536003. The next prime is 2123536021. The reversal of 2123536020 is 206353212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123536021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 608472 + ... + 611951.

It is an arithmetic number, because the mean of its divisors is an integer number (128144520).

Almost surely, 2^2123536020 is an apocalyptic number.

2123536020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123536020 is an abundant number, since it is smaller than the sum of its proper divisors (4027400940).

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

2123536020 is a wasteful number, since it uses less digits than its factorization.

2123536020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220464 (or 1220462 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2123536020 is about 46081.8404580373. The cubic root of 2123536020 is about 1285.3454879092.

Adding to 2123536020 its reverse (206353212), we get a palindrome (2329889232).

The spelling of 2123536020 in words is "two billion, one hundred twenty-three million, five hundred thirty-six thousand, twenty".