101438585811 has 12 divisors (see below), whose sum is σ = 147369354288. Its totient is φ = 67234822704.

The previous prime is 101438585791. The next prime is 101438585819. The reversal of 101438585811 is 118585834101.

101438585811 is a `hidden beast` number, since 1 + 0 + 14 + 3 + 8 + 58 + 581 + 1 = 666.

It is not a de Polignac number, because 101438585811 - 2⁶ = 101438585747 is a prime.

It is a super-2 number, since 2×101438585811² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101438585819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32573455 + ... + 32576568.

It is an arithmetic number, because the mean of its divisors is an integer number (12280779524).

Almost surely, 2^101438585811 is an apocalyptic number.

101438585811 is a deficient number, since it is larger than the sum of its proper divisors (45930768477).

101438585811 is a wasteful number, since it uses less digits than its factorization.

101438585811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65150202 (or 65150199 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 45.

The spelling of 101438585811 in words is "one hundred one billion, four hundred thirty-eight million, five hundred eighty-five thousand, eight hundred eleven".