742112012101 has 4 divisors (see below), whose sum is σ = 742140549100. Its totient is φ = 742083475104.

The previous prime is 742112012099. The next prime is 742112012129. The reversal of 742112012101 is 101210211247.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25801996900 + 716310015201 = 160630^2 + 846351^2 .

It is a cyclic number.

It is not a de Polignac number, because 742112012101 - 2¹ = 742112012099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742112012401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14229456 + ... + 14281513.

It is an arithmetic number, because the mean of its divisors is an integer number (185535137275).

Almost surely, 2^742112012101 is an apocalyptic number.

It is an amenable number.

742112012101 is a deficient number, since it is larger than the sum of its proper divisors (28536999).

742112012101 is a wasteful number, since it uses less digits than its factorization.

742112012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28536998.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 742112012101 its reverse (101210211247), we get a palindrome (843322223348).

The spelling of 742112012101 in words is "seven hundred forty-two billion, one hundred twelve million, twelve thousand, one hundred one".