2101261335471 has 12 divisors (see below), whose sum is σ = 3035172059920. Its totient is φ = 1400833137600.

The previous prime is 2101261335461. The next prime is 2101261335493. The reversal of 2101261335471 is 1745331621012.

2101261335471 is a `hidden beast` number, since 2 + 1 + 0 + 1 + 2 + 613 + 35 + 4 + 7 + 1 = 666.

It is not a de Polignac number, because 2101261335471 - 2⁷ = 2101261335343 is a prime.

It is a super-3 number, since 3×2101261335471³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101261335421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1417350 + ... + 2492268.

Almost surely, 2^{2101261335471} is an apocalyptic number.

2101261335471 is a deficient number, since it is larger than the sum of its proper divisors (933910724449).

2101261335471 is a wasteful number, since it uses less digits than its factorization.

2101261335471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292126 (or 1292123 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

Adding to 2101261335471 its reverse (1745331621012), we get a palindrome (3846592956483).

The spelling of 2101261335471 in words is "two trillion, one hundred one billion, two hundred sixty-one million, three hundred thirty-five thousand, four hundred seventy-one".