2102757821230 has 32 divisors (see below), whose sum is σ = 4131468154080. Its totient is φ = 764191720320.

The previous prime is 2102757821191. The next prime is 2102757821237. The reversal of 2102757821230 is 321287572012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102757821237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5404749 + ... + 5780728.

It is an arithmetic number, because the mean of its divisors is an integer number (129108379815).

Almost surely, 2^{2102757821230} is an apocalyptic number.

2102757821230 is a deficient number, since it is larger than the sum of its proper divisors (2028710332850).

2102757821230 is a wasteful number, since it uses less digits than its factorization.

2102757821230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11187204.

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 2102757821230 in words is "two trillion, one hundred two billion, seven hundred fifty-seven million, eight hundred twenty-one thousand, two hundred thirty".