101112123091 has 16 divisors (see below), whose sum is σ = 122775471360. Its totient is φ = 81338726880.

The previous prime is 101112123061. The next prime is 101112123103. The reversal of 101112123091 is 190321211101.

It is a cyclic number.

It is not a de Polignac number, because 101112123091 - 2¹³ = 101112114899 is a prime.

It is a super-2 number, since 2×101112123091² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101112123061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3538300 + ... + 3566761.

It is an arithmetic number, because the mean of its divisors is an integer number (7673466960).

Almost surely, 2^101112123091 is an apocalyptic number.

101112123091 is a deficient number, since it is larger than the sum of its proper divisors (21663348269).

101112123091 is a wasteful number, since it uses less digits than its factorization.

101112123091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7105194.

The product of its (nonzero) digits is 108, while the sum is 22.

Adding to 101112123091 its reverse (190321211101), we get a palindrome (291433334192).

The spelling of 101112123091 in words is "one hundred one billion, one hundred twelve million, one hundred twenty-three thousand, ninety-one".