10020102112091 has 4 divisors (see below), whose sum is σ = 10020135929472. Its totient is φ = 10020068294712.

The previous prime is 10020102112079. The next prime is 10020102112093. The reversal of 10020102112091 is 19021120102001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10020102112091 is a prime.

It is a super-3 number, since 3×10020102112091³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10020102112093) 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, 16460276 + ... + 17058161.

It is an arithmetic number, because the mean of its divisors is an integer number (2505033982368).

Almost surely, 2^{10020102112091} is an apocalyptic number.

10020102112091 is a deficient number, since it is larger than the sum of its proper divisors (33817381).

10020102112091 is an equidigital number, since it uses as much as digits as its factorization.

10020102112091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33817380.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 10020102112091 its reverse (19021120102001), we get a palindrome (29041222214092).

The spelling of 10020102112091 in words is "ten trillion, twenty billion, one hundred two million, one hundred twelve thousand, ninety-one".