2101100023260 has 240 divisors, whose sum is σ = 7792586746560. Its totient is φ = 463690967040.

The previous prime is 2101100023247. The next prime is 2101100023261. The reversal of 2101100023260 is 623200011012.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101100023261) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2865661 + ... + 3523380.

It is an arithmetic number, because the mean of its divisors is an integer number (32469111444).

Almost surely, 2^{2101100023260} is an apocalyptic number.

2101100023260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101100023260 is an abundant number, since it is smaller than the sum of its proper divisors (5691486723300).

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

2101100023260 is a wasteful number, since it uses less digits than its factorization.

2101100023260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6389098 (or 6389087 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2101100023260 its reverse (623200011012), we get a palindrome (2724300034272).

The spelling of 2101100023260 in words is "two trillion, one hundred one billion, one hundred million, twenty-three thousand, two hundred sixty".