1533431342242 has 8 divisors (see below), whose sum is σ = 2302243777836. Its totient is φ = 766016749632.

The previous prime is 1533431342221. The next prime is 1533431342293. The reversal of 1533431342242 is 2422431343351.

It can be written as a sum of positive squares in 2 ways, for example, as 1531309726521 + 2121615721 = 1237461^2 + 46061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349458003 + ... + 349462390.

Almost surely, 2^{1533431342242} is an apocalyptic number.

1533431342242 is a deficient number, since it is larger than the sum of its proper divisors (768812435594).

1533431342242 is a wasteful number, since it uses less digits than its factorization.

1533431342242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698921492.

The product of its digits is 207360, while the sum is 37.

Adding to 1533431342242 its reverse (2422431343351), we get a palindrome (3955862685593).

It can be divided in two parts, 153343 and 1342242, that added together give a triangular number (1495585 = T₁₇₂₉).

The spelling of 1533431342242 in words is "one trillion, five hundred thirty-three billion, four hundred thirty-one million, three hundred forty-two thousand, two hundred forty-two".