23111031242 has 32 divisors (see below), whose sum is σ = 40597662672. Its totient is φ = 9767844864.

The previous prime is 23111031241. The next prime is 23111031263. The reversal of 23111031242 is 24213011132.

It can be written as a sum of positive squares in 8 ways, for example, as 15564808081 + 7546223161 = 124759^2 + 86869^2 .

It is not an unprimeable number, because it can be changed into a prime (23111031241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690233 + ... + 722940.

Almost surely, 2^23111031242 is an apocalyptic number.

23111031242 is a deficient number, since it is larger than the sum of its proper divisors (17486631430).

23111031242 is a wasteful number, since it uses less digits than its factorization.

23111031242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413242.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 23111031242 its reverse (24213011132), we get a palindrome (47324042374).

The spelling of 23111031242 in words is "twenty-three billion, one hundred eleven million, thirty-one thousand, two hundred forty-two".