331412523242 has 4 divisors (see below), whose sum is σ = 497118784866. Its totient is φ = 165706261620.

The previous prime is 331412523227. The next prime is 331412523283. The reversal of 331412523242 is 242325214133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242325214133 = 237929 ⋅1018477.

It can be written as a sum of positive squares in only one way, i.e., 214988941561 + 116423581681 = 463669^2 + 341209^2 .

It is a junction number, because it is equal to n+sod(n) for n = 331412523199 and 331412523208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82853130809 + ... + 82853130812.

Almost surely, 2^331412523242 is an apocalyptic number.

331412523242 is a deficient number, since it is larger than the sum of its proper divisors (165706261624).

331412523242 is a wasteful number, since it uses less digits than its factorization.

331412523242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165706261623.

The product of its digits is 34560, while the sum is 32.

Adding to 331412523242 its reverse (242325214133), we get a palindrome (573737737375).

The spelling of 331412523242 in words is "three hundred thirty-one billion, four hundred twelve million, five hundred twenty-three thousand, two hundred forty-two".