2101240554023 has 4 divisors (see below), whose sum is σ = 2262874442808. Its totient is φ = 1939606665240.

The previous prime is 2101240553987. The next prime is 2101240554029. The reversal of 2101240554023 is 3204550421012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2101240554023 - 2¹² = 2101240549927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101240554029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80816944373 + ... + 80816944398.

It is an arithmetic number, because the mean of its divisors is an integer number (565718610702).

Almost surely, 2^{2101240554023} is an apocalyptic number.

2101240554023 is a deficient number, since it is larger than the sum of its proper divisors (161633888785).

2101240554023 is a wasteful number, since it uses less digits than its factorization.

2101240554023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161633888784.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 2101240554023 its reverse (3204550421012), we get a palindrome (5305790975035).

The spelling of 2101240554023 in words is "two trillion, one hundred one billion, two hundred forty million, five hundred fifty-four thousand, twenty-three".