9111322541242 has 4 divisors (see below), whose sum is σ = 13666983811866. Its totient is φ = 4555661270620.

The previous prime is 9111322541207. The next prime is 9111322541249. The reversal of 9111322541242 is 2421452231119.

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 only one way, i.e., 7787163721401 + 1324158819841 = 2790549^2 + 1150721^2 .

It is not an unprimeable number, because it can be changed into a prime (9111322541249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2277830635309 + ... + 2277830635312.

Almost surely, 2^{9111322541242} is an apocalyptic number.

9111322541242 is a deficient number, since it is larger than the sum of its proper divisors (4555661270624).

9111322541242 is a wasteful number, since it uses less digits than its factorization.

9111322541242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4555661270623.

The product of its digits is 34560, while the sum is 37.

The spelling of 9111322541242 in words is "nine trillion, one hundred eleven billion, three hundred twenty-two million, five hundred forty-one thousand, two hundred forty-two".