2101125053500 has 48 divisors (see below), whose sum is σ = 5006025958752. Its totient is φ = 764045472000.

The previous prime is 2101125053473. The next prime is 2101125053539. The reversal of 2101125053500 is 53505211012.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191005869 + ... + 191016868.

It is an arithmetic number, because the mean of its divisors is an integer number (104292207474).

Almost surely, 2^{2101125053500} is an apocalyptic number.

2101125053500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101125053500 is an abundant number, since it is smaller than the sum of its proper divisors (2904900905252).

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

2101125053500 is a wasteful number, since it uses less digits than its factorization.

2101125053500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382022767 (or 382022755 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 2101125053500 in words is "two trillion, one hundred one billion, one hundred twenty-five million, fifty-three thousand, five hundred".