2102530101 has 64 divisors (see below), whose sum is σ = 3468165120. Its totient is φ = 1106274240.

The previous prime is 2102530099. The next prime is 2102530121. The reversal of 2102530101 is 1010352012.

It is not a de Polignac number, because 2102530101 - 2¹ = 2102530099 is a prime.

It is a super-2 number, since 2×2102530101² = 8841265651222140402, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102530121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3581530 + ... + 3582116.

It is an arithmetic number, because the mean of its divisors is an integer number (54190080).

Almost surely, 2^2102530101 is an apocalyptic number.

2102530101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2102530101 is a deficient number, since it is larger than the sum of its proper divisors (1365635019).

2102530101 is a wasteful number, since it uses less digits than its factorization.

2102530101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2102530101 is about 45853.3543047834. The cubic root of 2102530101 is about 1281.0932434484.

Adding to 2102530101 its reverse (1010352012), we get a palindrome (3112882113).

The spelling of 2102530101 in words is "two billion, one hundred two million, five hundred thirty thousand, one hundred one".