2100521153320 has 64 divisors (see below), whose sum is σ = 4751835840000. Its totient is φ = 835649515008.

The previous prime is 2100521153299. The next prime is 2100521153359. The reversal of 2100521153320 is 233511250012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20190396 + ... + 20294164.

It is an arithmetic number, because the mean of its divisors is an integer number (74247435000).

Almost surely, 2^{2100521153320} is an apocalyptic number.

2100521153320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100521153320 is an abundant number, since it is smaller than the sum of its proper divisors (2651314686680).

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

2100521153320 is a wasteful number, since it uses less digits than its factorization.

2100521153320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106522 (or 106518 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 2100521153320 in words is "two trillion, one hundred billion, five hundred twenty-one million, one hundred fifty-three thousand, three hundred twenty".