11303531242 has 4 divisors (see below), whose sum is σ = 16955296866. Its totient is φ = 5651765620.

The previous prime is 11303531237. The next prime is 11303531279. The reversal of 11303531242 is 24213530311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24213530311 = 1039 ⋅23304649.

It can be written as a sum of positive squares in only one way, i.e., 9352630681 + 1950900561 = 96709^2 + 44169^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2825882809 + ... + 2825882812.

Almost surely, 2^11303531242 is an apocalyptic number.

11303531242 is a deficient number, since it is larger than the sum of its proper divisors (5651765624).

11303531242 is an equidigital number, since it uses as much as digits as its factorization.

11303531242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5651765623.

The product of its (nonzero) digits is 2160, while the sum is 25.

The spelling of 11303531242 in words is "eleven billion, three hundred three million, five hundred thirty-one thousand, two hundred forty-two".