731211051442 has 4 divisors (see below), whose sum is σ = 1096816577166. Its totient is φ = 365605525720.

The previous prime is 731211051433. The next prime is 731211051457. The reversal of 731211051442 is 244150112137.

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., 489539508241 + 241671543201 = 699671^2 + 491601^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182802762859 + ... + 182802762862.

Almost surely, 2^731211051442 is an apocalyptic number.

731211051442 is a deficient number, since it is larger than the sum of its proper divisors (365605525724).

731211051442 is a wasteful number, since it uses less digits than its factorization.

731211051442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365605525723.

The product of its (nonzero) digits is 6720, while the sum is 31.

Adding to 731211051442 its reverse (244150112137), we get a palindrome (975361163579).

The spelling of 731211051442 in words is "seven hundred thirty-one billion, two hundred eleven million, fifty-one thousand, four hundred forty-two".