2101235520540 has 96 divisors (see below), whose sum is σ = 6554517238080. Its totient is φ = 499391778816.

The previous prime is 2101235520493. The next prime is 2101235520541. The reversal of 2101235520540 is 450255321012.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2101235520498 and 2101235520507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101235520541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46423789 + ... + 46469028.

It is an arithmetic number, because the mean of its divisors is an integer number (68276221230).

Almost surely, 2^{2101235520540} is an apocalyptic number.

2101235520540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101235520540 is an abundant number, since it is smaller than the sum of its proper divisors (4453281717540).

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

2101235520540 is a wasteful number, since it uses less digits than its factorization.

2101235520540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92892871 (or 92892869 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 2101235520540 in words is "two trillion, one hundred one billion, two hundred thirty-five million, five hundred twenty thousand, five hundred forty".