431401011442 has 4 divisors (see below), whose sum is σ = 647101517166. Its totient is φ = 215700505720.

The previous prime is 431401011383. The next prime is 431401011473. The reversal of 431401011442 is 244110104134.

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., 379999506481 + 51401504961 = 616441^2 + 226719^2 .

It is a super-2 number, since 2×431401011442² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107850252859 + ... + 107850252862.

Almost surely, 2^431401011442 is an apocalyptic number.

431401011442 is a deficient number, since it is larger than the sum of its proper divisors (215700505724).

431401011442 is a wasteful number, since it uses less digits than its factorization.

431401011442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215700505723.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 431401011442 its reverse (244110104134), we get a palindrome (675511115576).

The spelling of 431401011442 in words is "four hundred thirty-one billion, four hundred one million, eleven thousand, four hundred forty-two".