3201431312042 has 4 divisors (see below), whose sum is σ = 4802146968066. Its totient is φ = 1600715656020.

The previous prime is 3201431312039. The next prime is 3201431312047. The reversal of 3201431312042 is 2402131341023.

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., 2626671731401 + 574759580641 = 1620701^2 + 758129^2 .

It is not an unprimeable number, because it can be changed into a prime (3201431312047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800357828009 + ... + 800357828012.

Almost surely, 2^{3201431312042} is an apocalyptic number.

3201431312042 is a deficient number, since it is larger than the sum of its proper divisors (1600715656024).

3201431312042 is a wasteful number, since it uses less digits than its factorization.

3201431312042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600715656023.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 3201431312042 its reverse (2402131341023), we get a palindrome (5603562653065).

The spelling of 3201431312042 in words is "three trillion, two hundred one billion, four hundred thirty-one million, three hundred twelve thousand, forty-two".