23231242442 has 4 divisors (see below), whose sum is σ = 34846863666. Its totient is φ = 11615621220.

The previous prime is 23231242423. The next prime is 23231242451. The reversal of 23231242442 is 24424213232.

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., 15620250361 + 7610992081 = 124981^2 + 87241^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5807810609 + ... + 5807810612.

Almost surely, 2^23231242442 is an apocalyptic number.

23231242442 is a deficient number, since it is larger than the sum of its proper divisors (11615621224).

23231242442 is a wasteful number, since it uses less digits than its factorization.

23231242442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11615621223.

The product of its digits is 18432, while the sum is 29.

Adding to 23231242442 its reverse (24424213232), we get a palindrome (47655455674).

The spelling of 23231242442 in words is "twenty-three billion, two hundred thirty-one million, two hundred forty-two thousand, four hundred forty-two".