101240142011 has 4 divisors (see below), whose sum is σ = 101248685112. Its totient is φ = 101231598912.

The previous prime is 101240141993. The next prime is 101240142079. The reversal of 101240142011 is 110241042101.

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-101240142011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101240141011) 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, 4253750 + ... + 4277483.

It is an arithmetic number, because the mean of its divisors is an integer number (25312171278).

Almost surely, 2^101240142011 is an apocalyptic number.

101240142011 is a deficient number, since it is larger than the sum of its proper divisors (8543101).

101240142011 is an equidigital number, since it uses as much as digits as its factorization.

101240142011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8543100.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101240142011 its reverse (110241042101), we get a palindrome (211481184112).

The spelling of 101240142011 in words is "one hundred one billion, two hundred forty million, one hundred forty-two thousand, eleven".