71311314442 has 12 divisors (see below), whose sum is σ = 110528830098. Its totient is φ = 34505473800.

The previous prime is 71311314439. The next prime is 71311314457. The reversal of 71311314442 is 24441311317.

It can be written as a sum of positive squares in only one way, i.e., 70103682441 + 1207632001 = 264771^2 + 34751^2 .

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18549409 + ... + 18553252.

Almost surely, 2^71311314442 is an apocalyptic number.

71311314442 is a deficient number, since it is larger than the sum of its proper divisors (39217515656).

71311314442 is a wasteful number, since it uses less digits than its factorization.

71311314442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37102725 (or 37102694 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

Adding to 71311314442 its reverse (24441311317), we get a palindrome (95752625759).

The spelling of 71311314442 in words is "seventy-one billion, three hundred eleven million, three hundred fourteen thousand, four hundred forty-two".